{"text_format":"dbase-jsonl-2026-09-30","columns":[{"name":"AREA","type":"number","width":31,"decimals":15},{"name":"PERIMETER","type":"number","width":31,"decimals":15},{"name":"GMUG_GEOL_","type":"number","width":11,"decimals":0},{"name":"GEOL_ID","type":"number","width":11,"decimals":0},{"name":"TYPE","type":"character","width":32},{"name":"QUAD","type":"character","width":2},{"name":"CODE","type":"character","width":5},{"name":"G1","type":"number","width":3,"decimals":0},{"name":"TOTAL","type":"character","width":5},{"name":"ID","type":"number","width":3,"decimals":0},{"name":"AGE","type":"character","width":3},{"name":"UNIT_1","type":"character","width":150},{"name":"UNIT_2","type":"character","width":250},{"name":"UNIT_3","type":"character","width":250},{"name":"LITHO_1","type":"character","width":15},{"name":"LITHO_2","type":"character","width":25},{"name":"PRIMARY","type":"character","width":40},{"name":"SECONDARY","type":"character","width":30},{"name":"NOTES","type":"character","width":50},{"name":"ECON_1","type":"character","width":30},{"name":"ECON_2","type":"character","width":30},{"name":"ECON_3","type":"character","width":30},{"name":"COLOR","type":"number","width":3,"decimals":0}],"n_rows":65,"rows_kept":65,"cut":false,"deleted_skipped":0,"read_ended":"whole","bounds":"16MiB/16384/4096/first_that_fit","version":"dbase_level_three","encoding_class":"enc_absent","reader":"statdb_count/9"}
[15067412.000000000000000,18304.070000000000000,60,775,"Tbb","l","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[75666672.000000000000000,99551.953000000000000,69,775,"Tbb","l","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[35267.594000000000000,800.481570000000000,91,852,"Tbb","l","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[31048352.000000000000000,25973.732000000000000,92,852,"Tbb","l","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[409850.340000000000000,2825.424300000000000,207,1012,"Tbb","l","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[392142.840000000000000,2901.720900000000000,215,1024,"Tbb","l","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[227209.380000000000000,1857.475000000000000,239,1034,"Tbb","l","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[20324476.000000000000000,19354.180000000000000,252,1062,"Tbb","l","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[516419.380000000000000,3272.144000000000000,317,1097,"Tbb","l","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[972690.880000000000000,4063.594000000000000,408,1160,"Tbb","l","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[868500.060000000000000,5744.175300000000000,415,1167,"Tbb","l","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[905946.120000000000000,4945.581500000000000,434,1187,"Tbb","l","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[53430.742000000000000,1001.569900000000000,461,1154,"Tbb","l","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[185467.410000000000000,2792.377700000000000,475,1181,"Tbb","l","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[184059.890000000000000,1930.790800000000000,482,1191,"Tbb","l","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[110514.090000000000000,1327.499900000000000,490,1201,"Tbb","l","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[330727.720000000000000,2714.291000000000000,508,1208,"Tbb","l","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[227465.690000000000000,3340.385300000000000,990,1620,"Tbbi","l","Tbbi",35,"Tbbi",29,"T","Basalt Dikes and Plugs (Pliocene and Miocene)","Probable feeders of basalt flows of Tbb unit; also intrusive into the flows; dike",null,"volcanic","mafic","basalt",null,"dikes",null,null,null,49]
[393833.060000000000000,5929.821800000000000,996,1622,"Tbbi","l","Tbbi",35,"Tbbi",29,"T","Basalt Dikes and Plugs (Pliocene and Miocene)","Probable feeders of basalt flows of Tbb unit; also intrusive into the flows; dike",null,"volcanic","mafic","basalt",null,"dikes",null,null,null,49]
[301756.910000000000000,4351.209000000000000,1027,1658,"Tbbi","l","Tbbi",35,"Tbbi",29,"T","Basalt Dikes and Plugs (Pliocene and Miocene)","Probable feeders of basalt flows of Tbb unit; also intrusive into the flows; dike",null,"volcanic","mafic","basalt",null,"dikes",null,null,null,49]
[85221.281000000000000,1684.199000000000000,1035,1664,"Tbbi","l","Tbbi",35,"Tbbi",29,"T","Basalt Dikes and Plugs (Pliocene and Miocene)","Probable feeders of basalt flows of Tbb unit; also intrusive into the flows; dike",null,"volcanic","mafic","basalt",null,"dikes",null,null,null,49]
[297430.280000000000000,4983.999500000000000,1097,1705,"Tbbi","l","Tbbi",35,"Tbbi",29,"T","Basalt Dikes and Plugs (Pliocene and Miocene)","Probable feeders of basalt flows of Tbb unit; also intrusive into the flows; dike",null,"volcanic","mafic","basalt",null,"dikes",null,null,null,49]
[339771.910000000000000,4813.895000000000000,1104,1725,"Tbbi","l","Tbbi",35,"Tbbi",29,"T","Basalt Dikes and Plugs (Pliocene and Miocene)","Probable feeders of basalt flows of Tbb unit; also intrusive into the flows; dike",null,"volcanic","mafic","basalt",null,"dikes",null,null,null,49]
[102857.020000000000000,1838.763300000000000,1114,1726,"Tbbi","l","Tbbi",35,"Tbbi",29,"T","Basalt Dikes and Plugs (Pliocene and Miocene)","Probable feeders of basalt flows of Tbb unit; also intrusive into the flows; dike",null,"volcanic","mafic","basalt",null,"dikes",null,null,null,49]
[103452.400000000000000,2232.877700000000000,1185,1763,"Tbbi","l","Tbbi",35,"Tbbi",29,"T","Basalt Dikes and Plugs (Pliocene and Miocene)","Probable feeders of basalt flows of Tbb unit; also intrusive into the flows; dike",null,"volcanic","mafic","basalt",null,"dikes",null,null,null,49]
[437658.750000000000000,8483.916000000000000,1188,1770,"Tbbi","l","Tbbi",35,"Tbbi",29,"T","Basalt Dikes and Plugs (Pliocene and Miocene)","Probable feeders of basalt flows of Tbb unit; also intrusive into the flows; dike",null,"volcanic","mafic","basalt",null,"dikes",null,null,null,49]
[168630.060000000000000,2492.809600000000000,1198,1778,"Tbbi","l","Tbbi",35,"Tbbi",29,"T","Basalt Dikes and Plugs (Pliocene and Miocene)","Probable feeders of basalt flows of Tbb unit; also intrusive into the flows; dike",null,"volcanic","mafic","basalt",null,"dikes",null,null,null,49]
[83414.258000000000000,1931.723900000000000,1200,1766,"Tbbi","l","Tbbi",35,"Tbbi",29,"T","Basalt Dikes and Plugs (Pliocene and Miocene)","Probable feeders of basalt flows of Tbb unit; also intrusive into the flows; dike",null,"volcanic","mafic","basalt",null,"dikes",null,null,null,49]
[420868.840000000000000,3164.565700000000000,1287,1816,"Tbb","l","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[759879.440000000000000,4125.834500000000000,1297,1814,"Tbb","l","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[602589.810000000000000,4808.893600000000000,1364,1865,"Tbb","l","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[1256874.200000000000000,16504.473000000000000,1376,1881,"Tbbi","l","Tbbi",35,"Tbbi",29,"T","Basalt Dikes and Plugs (Pliocene and Miocene)","Probable feeders of basalt flows of Tbb unit; also intrusive into the flows; dike",null,"volcanic","mafic","basalt",null,"dikes",null,null,null,49]
[1133523.500000000000000,14662.330000000000000,1398,9271,"Tb","gj","Tb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[140566.730000000000000,1393.353400000000000,1404,1886,"Tbb","l","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[138052.410000000000000,1552.952300000000000,1432,1896,"Tbb","l","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[168135.160000000000000,1677.969400000000000,1461,1904,"Tbb","l","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[154368.380000000000000,2302.223100000000000,1490,9535,"Tbbi","l","Tbbi",35,"Tbbi",29,"T","Basalt Dikes and Plugs (Pliocene and Miocene)","Probable feeders of basalt flows of Tbb unit; also intrusive into the flows; dike",null,"volcanic","mafic","basalt",null,"dikes",null,null,null,49]
[173416.770000000000000,2749.956100000000000,1492,9553,"Tbbi","l","Tbbi",35,"Tbbi",29,"T","Basalt Dikes and Plugs (Pliocene and Miocene)","Probable feeders of basalt flows of Tbb unit; also intrusive into the flows; dike",null,"volcanic","mafic","basalt",null,"dikes",null,null,null,49]
[370268.310000000000000,5155.830600000000000,1496,9473,"Tb","gj","Tb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[2190254.500000000000000,9345.955100000000000,1985,2107,"Tbb","mr","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[6050463.000000000000000,10073.536000000000000,2132,2174,"Tbb","mr","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[731707.690000000000000,4665.243700000000000,2812,2533,"Tbb","mr","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[8878549.000000000000000,32133.984000000000000,2850,2561,"Tbb","mr","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[89009408.000000000000000,101483.550000000000000,2941,2594,"Tbb","mr","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[127883240.000000000000000,120098.060000000000000,3229,2730,"Tbb","mr","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[619990.310000000000000,2854.203900000000000,3365,2821,"Tbb","mr","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[715305.250000000000000,3325.984900000000000,3399,2824,"Tbb","mr","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[607851.750000000000000,3098.835400000000000,3416,2834,"Tbb","mr","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[267929.500000000000000,2153.942100000000000,3430,2838,"Tbb","mr","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[9869310.000000000000000,16754.201000000000000,3485,2856,"Tbb","mr","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[5445173.500000000000000,13701.151000000000000,3582,10122,"Tbb","mr","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[933144.880000000000000,4038.318600000000000,3596,10200,"Tbb","mr","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[356591.160000000000000,2588.287600000000000,3603,10119,"Tbb","mr","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[432917.720000000000000,2618.722400000000000,3763,2907,"Thb","d","Thb",51,"Thb",28,"T","Hinsdale Frm (Pliocene and Miocene; 4.7-23.4 m.y.) Basalt flows","Basalt flows-fine-grained alkali olivine basalt and basaltic andesite generally containing olivine phenocrysts. Xenocrysts of q",null,"volcanic","mafic","basalt","rhyolite","flows and necks",null,null,null,48]
[16601087.000000000000000,26924.178000000000000,3975,2976,"Thb","d","Thb",51,"Thb",28,"T","Hinsdale Frm (Pliocene and Miocene; 4.7-23.4 m.y.) Basalt flows","Basalt flows-fine-grained alkali olivine basalt and basaltic andesite generally containing olivine phenocrysts. Xenocrysts of q",null,"volcanic","mafic","basalt","rhyolite","flows and necks",null,null,null,48]
[587735.120000000000000,3997.505900000000000,4162,3064,"Thb","d","Thb",51,"Thb",28,"T","Hinsdale Frm (Pliocene and Miocene; 4.7-23.4 m.y.) Basalt flows","Basalt flows-fine-grained alkali olivine basalt and basaltic andesite generally containing olivine phenocrysts. Xenocrysts of q",null,"volcanic","mafic","basalt","rhyolite","flows and necks",null,null,null,48]
[13690121.000000000000000,24593.434000000000000,5239,3517,"Thd","d","Thb",51,"Thb",28,"T","Hinsdale Frm (Pliocene and Miocene; 4.7-23.4 m.y.) Basalt flows","Basalt flows-fine-grained alkali olivine basalt and basaltic andesite generally containing olivine phenocrysts. Xenocrysts of q",null,"volcanic","mafic","basalt","rhyolite","flows and necks",null,null,null,48]
[21711.016000000000000,563.672670000000000,5291,6182,"Tb","gj","Tb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[2978717.800000000000000,44967.301000000000000,5403,9251,"Tb","gj","Tb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[7041922.500000000000000,18063.664000000000000,5415,9266,"Tbb","l","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[165137.330000000000000,2488.892600000000000,5572,9522,"Tb","gj","Tb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[270272.780000000000000,1965.183600000000000,5648,9715,"Tbbi","mr","Tbbi",35,"Tbbi",29,"T","Basalt Dikes and Plugs (Pliocene and Miocene)","Probable feeders of basalt flows of Tbb unit; also intrusive into the flows; dike",null,"volcanic","mafic","basalt",null,"dikes",null,null,null,49]
[19366480.000000000000000,20924.311000000000000,5766,10020,"Tbb","mr","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[4518425.000000000000000,11235.527000000000000,5780,10282,"Tbb","mr","Tbb",34,"Tbb",27,"T","Basalt of Bimodal Suite (Pliocene and Miocene)","Dense black resistant alkali basalt in lava-flow layers 5-200 ft thick and interbedded tuffs and volcanic conglomerates.","Greatest preserved thicknesses are 900ft on White River Plateau and 800ft on Grand Mesa. Ages determined from several localities range from 8 to 23 m.y.","volcanic","mafic","basalt",null,"feeder dikes",null,null,null,48]
[3888688.500000000000000,9042.398400000000000,5818,10576,"Thb","d","Thb",51,"Thb",28,"T","Hinsdale Frm (Pliocene and Miocene; 4.7-23.4 m.y.) Basalt flows","Basalt flows-fine-grained alkali olivine basalt and basaltic andesite generally containing olivine phenocrysts. Xenocrysts of q",null,"volcanic","mafic","basalt","rhyolite","flows and necks",null,null,null,48]