Abernathy, E.J., and Olszewski, K.M., 1983, Soil survey of LeFlore County, Oklahoma: U.S. Department of Agriculture Soil Conservation Service, 211 p.
Adamski, J.C., Petersen, J.C., Freiwald, D.A., and Davis, J.V., 1995, Environmental and hydrologic setting of the Ozark Plateaus study unit, Arkansas, Kansas, Missouri, and Oklahoma: U.S. Geological Survey Water- Resources Investigations Report 94-4022, 69 p.
Alexander, R.B., Ludtke, A.S., Fitzgerald, K.K., Briel, L.I., and Schertz, T.L., 1996, Data from the U.S. Geological Survey National Stream Water-Quality Monitoring Networks (WQN) on CD-ROM: U.S. Geological Survey Open-File Report 96-337 and Digital Data Series DDS-37, 1 CD-ROM.
Arey, M.F., 1916, Geology of Ringgold County: Iowa Geological Survey Annual Report 1916, p. 33-68.
Argabright, M.S., Cronshey, R.G., Helms, J.D., Pavelis, G.A., and Sinclair, H.R., Jr., 1996, Historical changes in soil erosion, 1930-1992, the northern Mississippi Valley Loess Hills: U.S. Department of Agriculture Natural Resources Conservation Service, Resource Economics and Social Sciences Division Historical Notes 5, 92 p.
Bailey, R.G., Avers, P.E., King, T., and McNab, W.H., eds., 1994, Ecoregions and subregions of the United States with supplementary table of map unit descriptions: Washington, D.C., U.S. Department of Agriculture Forest Service, scale 1:7,500,000(also at URL http://www.fs.fed.us/land/ecosysmgmt/ecoreg1_home.html, accessed 1998).
Baker, L.A., 1991, Regional estimates of atmospheric dry deposition, in Charles, D.F., ed., Acidic deposition and aquatic ecosystems-Regional case studies: New York, Springer-Verlag, p. 645-652.
Barker, R.A., Bush, P.W., and Baker, E.T., Jr., 1994, Geologic history and hydrogeologic setting of the Edwards-Trinity aquifer system, west-central Texas: U.S. Geological Survey Water-Resources Investigations Report 94- 4039, 51 p.
Barnes, Ivan, 1964, Field measurement of alkalinity and pH: U.S. Geological Survey Water-Supply Paper 1535-H, 17 p.
Barnes, V.E., 1981, Geologic atlas of Texas, Sonora sheet: The University of Texas at Austin, Bureau of Economic Geology, scale 1:250,000.
Bass, S.M.W., 1981, For the trees-An illustrated history of the Ozark-St. Francis National Forests, 1908-1978: U.S. Department of Agriculture Forest Service, Southern Region, 171 p.
Biesecker, J.E., and Leifeste, D.K., 1975, Water quality of hydrologic benchmarks-An indicator of water quality in the natural environment: U.S. Geological Survey Circular 460-E, 21 p.
Blazs, R.L., Walters, D.M., Coffey, T.E., White, D.K., Boyle, D.L., and Kerestes, J.F., 1996, Water resources data, Oklahoma, water year 1995-v. 2, Red River Basin and ground water wells: U.S. Geological Survey Water- Data Report OK-95-2, 242 p.
Blumer, S.P., Behrendt, T.E., Ellis, J.M., Minnerick, R.J., LeuVoy, R.L., and Whited, C.R., 1996, Water resources data, Michigan, water year 1995: U.S. Geological Survey Water-Data Report MI-95-1, 320 p.
Boeckman, L.E., 1992, Soil survey of Ringgold County, Iowa: U.S. Department of Agriculture Soil Conservation Service, 230 p., 80 folded plates.
Briggs, Garrett, 1973, Geology of the eastern part of the Lynn Mountain Syncline, Le Flore County, Oklahoma: Oklahoma Geological Survey Circular 75, 31 p.
Buell, G.R., 1985, The hydrologic benchmark program-A standard to evaluate time-series trends in selected water-quality constituents for streams in Georgia: U.S. Geological Survey Water-Resources Investigations Report 84-4318, 36 p.
Burras, L., Smeck, N.E., and Bigham, J.M., 1996, Origin and properties of smectite in loess-derived soils of western Ohio: Soil Science Society of America, v. 60, p. 1961-1968.
Cagle, J.W., 1967, Availability of ground water in Decatur County, Iowa: Iowa Geological Survey Water Atlas 2, 28 p.
Cagle, J.W., 1973, Bedrock topography of south-central Iowa: U.S. Geological Survey Map I-763.
Cagle, J.W., and Heinitz, A.J., 1978, Water resources of south-central Iowa: Iowa Geological Survey Water Atlas 5, 97 p.
Clayton, Lee, 1986, Pleistocene geology of Florence County, Wisconsin: Wisconsin Geological and Natural History Survey, Information Circular 51, 13 p.
Clingenpeel, J.A., 1994, A cumulative effects analysis of silvicultural best management practices using basin areas stream survey methods-v. 1, The study, results, discussion, and summary and conclusions: Arkansas, Hot Springs, U.S. Department of Agriculture Forest Service, Southern Region, Ouachita National Forest, 53 p.
Cobb, E.D., and Biesecker, J.E., 1971, The national hydrologic benchmark network: U.S. Geological Survey Circular 460-D, 38 p.
Cole, E.F., and Morris, E.E., 1986, Quality of water resources of the Ouachita National Forest, Arkansas: U.S. Geological Survey Water-Resources Investigations Report 86-4166.
Cook, R.B., and Jager, H.I., 1991, Upper Midwest, in Charles, D.F., ed., Acidic deposition and aquatic ecosystems- Regional case studies: New York, Springer-Verlag, p. 421-466.
Craig, W.W., Wise, O., and McFarland, J.D., 1984, A guidebook to the post-St. Peter Ordovician and the Silurian and Devonian rocks of north-central Arkansas: Arkansas Geological Commission Report GB-84-1, p. 1-9.
Dale, E.E., Meyer, R.L., Parker, D.G., Smith, E.G., and Springer, M.D., 1978, Buffalo National River ecosystems- Final report: Arkansas Water Resources Research Center, Publication 58, p. 77-112.
Davidson, D.M., Jr., 1969, Geologic map of Kawishiwi Lake quadrangle, Lake and Cook Counties, Minnesota: Minnesota Geological Survey Miscellaneous Map M-7, 10 p.
Davis, J.V., Petersen, J.C., Adamski, J.C., and Freiwald, D.A., 1995, Water-quality assessment of the Ozark Plateaus study unit, Arkansas, Kansas, Missouri, and Oklahoma-Analysis of information on nutrients, suspended sediment, and suspended solids, 1970-92: U.S. Geological Survey Water-Resources Investigations Report 95-4042, 112 p.
DeWitt, T.A., 1990, Soil survey of Decatur County, Iowa: U.S. Department of Agriculture Soil Conservation Service, 224 p., 35 folded plates.
Dittemore, W.H., Jr., and Allison, J.E., 1979, Soil survey of Plano and Burnet Counties, Texas: U.S. Department of Agriculture Soil Conservation Service, 116 p.
Durum, W.H., 1978, Historical profile of quality of water laboratories and activities, 1879-1973: U.S. Geological Survey Open-File Report 78-432, 235 p.
Ericksen, G.E., and others, 1983, Mineral resources of the Caney Creek Wilderness, Polk County, Arkansas: U.S. Geological Survey Bulletin 1551, 42 p.
Fisk, H.N., 1938, Geology of Grant and La Salle Parishes: Louisiana Geological Survey Bulletin 10, 246 p.
Fishman, M.J., and Friedman, L.C., 1989, Methods for determination of inorganic substances in water and fluvial sediments: U.S. Geological Survey Techniques of Water-Resources Investigations, book 5, chap. A1, 545 p.
Fishman, M.J., Raese, J.W., Gerlitz, C.N., and Husband, R.A., 1994, U.S. Geological Survey approved inorganic and organic methods for the analysis of water and fluvial sediment, 1954-94: U.S. Geological Survey Open-File Report 94-351, 55 p.
Freiwald, D.A., 1985, Average annual precipitation and runoff for Arkansas, 1951-80: U.S. Geological Survey Water-Resources Investigations Report 84-4363.
Gandara, S.C., Gibbons, W.J., Andrews, F.L., Fisher, J.C., Hinds, B.A., and Jones, R.E., 1996, Water resources data, Texas, water year 1995-v. 2, San Jacinto River Basin, Brazos River Basin, San Bernard River Basin, and intervening coastal basins: U.S. Geological Survey Water-Data Report TX-95-2, 373 p.
Garrison, C.R., Lovelace, W.M., and Montgomery, P.A., 1996, Water resources data, Louisiana, water year 1995: U.S. Geological Survey Water-Data Report LA-95-1, 510 p.
Gaydos, M.W., Rogers, J.E., and Smith, R.P., 1973, Water resources of the Little River Basin, Louisiana: U.S. Geological Survey Water-Supply Paper 1989, 74 p.
Gilbert, M.G., 1982, Geologic setting of the eastern Wichita Mountains with a brief discussion of unresolved problems, in Gilbert, M.G., and Donovan, R.N., eds., Geology of the eastern Wichita Mountains, southwestern Oklahoma: Oklahoma Geological Survey Guidebook 21, p. 1-30.
Glass, G.E., and Loucks, O.L., 1986, Implications of a gradient in acid and ion deposition across the northern lakes states: Environmental Science and Technology, v. 20, p. 35-43.
Golden, M.L., Gabriel, W.J., and Stevens, J.W., 1982, Soil survey of Val Verde County, Texas: U.S. Department of Agriculture Soil Conservation Service, 138 p.
Gray, H.H., Forsyth, J.L., Schneider, A.F., and Gooding, A.M., 1972, Regional geologic map no. 7, Cincinnati sheet, part B: Bloomington, Indiana Geological Survey, 1 sheet, scale 1:250,000.
Grout, F.F., Sharp, R.P., and Schwartz, G.M., 1959, The geology of Cook County, Minnesota: Minnesota Geological Survey Bulletin 39, 163 p.
Hainly, R.A., and Ritter, J.R., 1986, Areal and temporal variability of selected water-quality characteristics in two hydrologic-benchmark basins in the northeastern United States: U.S. Geological Survey Water-Resources Investigations Report 85-4025, 22 p.
Hansen, H.L., Krefting, L.W., and Kurmis, Vilis, 1973, The forest of Isle Royale in relation to fire history and wildlife: Agricultural Experiment Station Technical Bulletin 294, Forestry Series 13, 43 p.
Hanson, R.L., 1991, Hydrology of floods and droughts, evapotranspiration and droughts, in National Water Summary 1988-89-Floods and droughts: U.S. Geological Survey Water-Supply Paper 2375, p. 99-104.
Havens, J.S., 1983, Reconnaissance of groundwater in vicinity of Wichita Mountains, southwestern Oklahoma: Oklahoma Geological Survey Circular 85, 13 p.
Heinselman, Miron, 1996, The boundary waters wilderness ecosystem: Minneapolis and London, University of Minnesota Press, 334 p.
Hirsch, R.M., Slack, J.R., and Smith, R.A., 1982, Techniques of trend analysis for monthly water-quality data: Water Resources Research, v. 18, no. 1, p. 107-121.
Hobbs, H.C., 1984, Surficial geology, in Geologic atlas of Winona County, Minnesota: Minnesota Geological Survey County Atlas Series, Atlas C-2, plate 3, scale 1:100,000.
Hobbs, H.C., 1988, Surficial geology, in Geologic atlas of Olmsted County, Minnesota: Minnesota Geological Survey County Atlas Series, Atlas C-3, plate 3, scale 1:100,000.
Hoelscher, J.E., McCollum, C.N., and Laurent, G.D., 1975, Soils survey of Howard County, Arkansas: U.S. Department of Agriculture Soil Conservation Service, 75 p., 38 folded plates.
Hole, F.D., Olson, G.W., Schmude, K.O., and Milfred, C.J., 1962, Soil survey of Florence County, Wisconsin: Wisconsin Geological and Natural History Survey Bulletin 84, Soil Series 59, 140 p.
Homoya, M.A., Abrell, D.B., Aldrich, J.R., and Post, T.W., 1985, The natural regions of Indiana: Indiana Academy of Science, v. 94, p. 245-268.
Holmstrom, B.K., Olson, D.L., and Ellefson, B.R., 1996, Water resources data, Wisconsin, water year 1995: U.S. Geological Survey Water-Data Report WI-95-1, 562 p.
Huber, N.K., 1973a, Glacial and postglacial geologic history of Isle Royale National Park: U.S. Geological Survey Professional Paper 754-A, 15 p.
Huber, N.K., 1973b, The Portage Lake Volcanics (middle Keweenawan) on Isle Royale, Michigan: U.S. Geological Survey Professional Paper 754-C, 32 p.
Husar, R.B., Sullivan, T.J., and Charles, D.F., 1991, Historical trends in atmospheric sulfur deposition and methods for assessing long-term trends in surface water chemistry, in Charles, D.F., ed., Acidic deposition and aquatic ecosystems-Regional case studies: New York, Springer-Verlag, p. 48-92.
Hyde, J.E., 1953, Mississippian formations of central and southern Ohio: Ohio Division of Geological Survey Bulletin 51, 355 p.
International Boundary and Water Commission, 1995, Flow of the Rio Grande and tributaries and related data: International Boundary and Water Commission Water Bulletin 65, 129 p.
Johnsson, P.A., and Barringer, J.L., 1993, Water quality and hydrogeochemical processes in McDonalds Branch basin, New Jersey Pinelands, 1984-1988: U.S. Geological Survey Water-Resources Investigations Report 91-4081, 111 p.
Kilpatrick, W.W., Henry, C.H., Jr., Ragus, J., Ardoin, A., Mason, P., and Williams, E., 1986, Soil survey of Grant Parish, Louisiana: U.S. Department of Agriculture Soil Conservation Service, 141 p., 57 folded plates.
Kross, B.C., 1990, The Iowa State-wide rural well-water survey, water-quality data-Initial analysis: Iowa Department of Natural Resources Technical Information Series 19, 142 p.
Lawrence, C.L., 1987, Streamflow characteristics at hydrologic benchmark stations: U.S. Geological Survey Circular 941, 123 p.
Leopold, L.B., 1962, A national network of hydrologic bench marks: U.S. Geological Survey Circular 460-B, 4 p.
Likens, G.E., Bormann, F.H., Pierce, R.S., Eaton, J.S., and Johnson, N.M., 1977, Biogeochemistry of a forested ecosystem: New York, Springer-Verlag, 146 p.
Lins, H.F., 1986, Recent patterns of sulfate variability in pristine streams: Atmospheric Environment, v. 20, no. 2, p. 367-375.
Lord, D.G., Barringer, J.L., Johnsson, P.A., Schuster, P.A., Walker, R.L., Fairchild, J.E., Sroka, B.N., and Jacobsen, Eric, 1990, Hydrogeochemical data from an acidic deposition study at McDonalds Branch Basin in the New Jersey Pinelands, 1983-1986: U.S. Geological Survey Open-File Report 88-500, 124 p.
Ludwig, A.H., 1992, Flow duration and low-flow characteristics of selected Arkansas streams: U.S. Geological Survey Water-Resources Investigations Report 92-4026, 57 p.
Lueth, R.A., 1994, Soil survey of Winona County, Minnesota: U.S. Department of Agriculture Soil Conservation Service, 278 p., 100 folded plates.
Lynch, J.A., Grimm, J.W., and Bowersox, V.C., 1995, Trends in precipitation chemistry in the United States-A national perspective, 1980-1992:Atmospheric Environment, v. 29, no. 11, p. 1231-1246.
Maher, J.C., 1941, Ground-water resources of Grant and La Salle Parishes, Louisiana: Louisiana Geological Survey Bulletin 20, 95 p.
Martin, Angel, Jr., and Whiteman, C.D., 1986, Generalized potentiometric surface of the Catahoula Aquifer in central Louisiana, 1980: U.S. Geological Survey Water-Resources Investigations Report 88-4059, scale 1:500,000.
Mast, M.A., and Turk, J.T., 1999, Environmental characteristics and water quality of Hydrologic Benchmark Network stations in the Eastern United States, 1963-95: U.S. Geological Survey Circular 1173-A, 158 p.
McCleary, F.E., Feusner, M.M., and Hamilton, S.J., 1989, Soil survey of Scioto County, Ohio: U.S. Department of Agriculture Soil Conservation Service, 207 p., 78 folded plates.
McFarland, J.D., Bush, W.V., Wise, O.A., and Holbrook, Drew, 1979, A guidebook to the Ordovician-Mississippian rocks of north-central Arkansas: Arkansas Geological Commission Report GB-79-1, 25 p.
McWilliams, K.M., 1985, Soil survey of Ripley County and part of Jennings County, Indiana: U.S. Department of Agriculture Soil Conservation Service, 125 p.
Miser, H.D., and Purdue, A.H., 1929, Geology of the De Queen and Caddo Gap quadrangles: U.S. Geological Survey Bulletin 808, 195 p., scale 1:125,000.
Mitton, G.B., Wakeman, E.S., and Guttormson, K.G., 1996, Water resources data, Minnesota, water year 1995: U.S. Geological Survey Water-Data Report MN-95-1, 389 p.
Mobley, H.L., 1967, Soil survey of Comanche County, Oklahoma: U.S. Department of Agriculture, Soil Conservation Service, 58 p.
Mossler, J.H., and Book, P.R., 1984, Bedrock geology, in Geologic atlas of Winona County, Minnesota: Minnesota Geological Survey County Atlas Series, Atlas C-2, scale 1:100,000.
Murdoch, P.S., 1991, Chemical budgets and stream-chemistry dynamics of a headwater stream in the Catskill Mountains of New York, October 1, 1983, through September 30, 1985: U.S. Geological Survey Water-Resources Investigations Report 88-4035, 66 p.
Murdoch, P.S., and Stoddard, J.L., 1993, The role of nitrate in the acidification of streams in the Catskill Mountains of New York: Water Resources Research, v. 28, no. 10, p. 2707-2720.
National Climatic Data Center, 1996, Summary of the day: Boulder, Colorado, EarthInfo Incorporated, CD-ROM.
Nix, J.F., Thornton, K.W., Ford, D.E., and Malcolm, J., 1988, Storm event sampling of two low alkalinity southwestern Arkansas streams: U.S. Environmental Protection Agency Report EPA/600/3-88/023, 239 p.
Oakes, Edward, Field, S.J., and Seeger, L.P., 1973, The Pine-Popple River Basin-Hydrology of a wild river area, northeastern Wisconsin: U.S. Geological Survey Water-Supply Paper 2006, 57 p.
Peden, M.E., 1983, Sampling, analytical, and quality assurance protocols for the National Atmospheric Deposition Program, in Campbell, S.A., ed., Sampling and analysis of rain: American Society for Testing and Materials, Special Technical Publication 823, p. 72-83.
Peters, N.E., 1991, Chloride cycling in two forested lake watersheds in the west-central Adirondack Mountains, New York, U.S.A.: Water, Air, and Soil Pollution, v. 59, p. 201-215.
Pettyman, D.H., 1978, Soil survey of Kawishiwi area, Minnesota-Parts of Lake and Cook Counties in Superior National Forest: U.S. Department of Agriculture Soil Conservation Service, 35 p.
Porter, J.E., Evans, D.A., and Pugh, A.L., 1996, Water resources data, Arkansas, water year 1995: U.S. Geological Survey Water-Data Report AR-95-1, 408 p.
Renn, D.E., and Arihood, L.D., 1991, Sedimentation in Versailles Lake, Ripley County, southeastern Indiana, 1956- 88: U.S. Geological Survey Water-Resources Investigations Report 92-4011, 63 p.
Rittmaster, R.L., and Shanley, J.B., 1995, Factors affecting water quality and net flux of solutes in two stream basins in the Quabbin Reservoir drainage basin, central Massachusetts, 1983-85: U.S. Geological Survey Water- Resources Investigations Report 94-4003, 66 p.
Schertz, T.L., Alexander, R.B., and Ohe, D.J., 1991, The computer program Estimate Trend (ESTREND), a system for the detection of trends in water-quality data: U.S. Geological Survey Water-Resources Investigations Report 91-4040, 60 p.
Schertz, T.L., Wells, F.C., and Ohe, D.J., 1994, Sources of trends in water-quality data for selected streams in Texas, 1975-89 water years: U.S. Geological Survey Water-Resources Investigations Report 94-4213, 49 p.
Seeley, D.R., 1963, Structure and stratigraphy Rich Mountain area: Oklahoma Geological Survey Bulletin 101, 173 p.
Shelton, Napier, 1975, The life of Isle Royale: Washington, D.C., National Park Service, Natural History Series, 142 p.
Sheppard, R.A., 1964, Geology of the Portsmouth quadrangle, Kentucky-Ohio and parts of the Wheelsburg and New Boston quadrangles: U.S. Geological Survey Geologic Quadrangle Maps of the United States Map GQ-213, scale 1:24,000.
Shindel, H.L., Mangus, J.P., and Trimble, L.E., 1996, Water resources data, Ohio, water year 1995-v. 1, Ohio River Basin excluding project data: U.S. Geological Survey Water-Data Report OH-95-1, 285 p.
Siegel, D.I., and Ericson, D.W., 1980, Hydrology and water quality of the copper-nickel study region, northeastern Minnesota: U.S. Geological Survey Water-Resources Investigations Report 80-739, 87 p.
Siegel, D.I., 1981, Effect of snowmelt on the quality of Filson Creek and Omaday Lake, northeastern Minnesota: U.S. Geological Survey Water-Resources Investigations Report 81-66, 81 p.
Simpkins, W.W., and Burkart, M.R., 1996, Hydrogeology and water quality of the Walnut Creek watershed: Iowa Geological Survey Bureau, Guidebook Series 20, p. 69-78.
Simpkins, W.W., McCartney, M.C., and Mickelson, D.M., 1987, Pleistocene geology of Forest County, Wisconsin: Wisconsin Geological and Natural History Survey, Information Circular 61, 21 p.
Sims, P.K., 1990, Geologic map of Precambrian rocks of Iron Mountain and Escanaba 1° ¥ 2° quadrangles, northeastern Wisconsin and northwestern Michigan: U.S. Geological Survey Miscellaneous Investigations Series Map I-2056, scale 1:250,000.
Sims, P.K., Schulz, K.J., and Peterman, Z.E., 1992, Geology and geochemistry of Early Proterozoic rocks in the Dunbar area, northeastern Wisconsin: U.S. Geological Survey Professional Paper 1517, 65 p.
Slavich, A.D., and Janke, R.A., 1993, The vascular flora of Isle Royale National Pare: Houghton, Michigan, Isle Royale Natural History Association, 50 p.
Smart, M.M., Jones, R.J., and Sebaugh, J.L., 1985, Stream-watershed relations in the Missouri Ozark Plateau Province: Journal of Environmental Quality, v. 14, no. 1, p. 77-82.
Smith, E.S., and Nemetz, D.A., 1996, Water quality along selected flowpaths in the Prairie du Chien-Jordon aquifer, southeastern Minnesota: U.S. Geological Survey Water-Resources Investigations Report 95-4115, 76 p.
Smith, R.A., and Alexander, R.B., 1983, Evidence for acid-precipitation-induced trends in stream chemistry at hydrologic benchmark stations: U.S. Geological Survey Circular 910, 12 p.
Southard, R.E., Sneck-Fahrer, D., Anderson, C.J., Goodrich, R.D., and Gorman, J.G., 1994, Water resources data, Iowa, water year 1993: U.S. Geological Survey Water-Data Report IA-93-1, 388 p.
Stewart, J.A., Keeton, C.R., Benedict, B.L., and Hammil, L.E., 1994, Water resources data, Indiana, water year 1993: U.S. Geological Survey Water-Data Report IN-93-1, 344 p.
Stoddard, J.L., and Murdoch, P.A., 1991, Catskill Mountains, in Charles, D.F., Acidic deposition and aquatic ecosystems-Regional case studies: New York, Springer-Verlag, p. 237-272.
Stottlemyer, R., and Hanson, D.G., Jr., 1989, Atmospheric deposition and ionic concentrations in forest soils of Isle Royale National Park: Soil Science Society of America Journal, v. 53, no. 1, p. 270-274.
Sullivan, D.J., Peterson, E.M., and Richards, K.D., 1995, Environmental setting of fixed sites in the western Lake Michigan drainages, Michigan and Wisconsin: U.S. Geological Survey Water-Resources Investigations Report 95-4211-A, 30 p.
Texas Geological Survey, 1981, Geologic atlas of Texas, Llano Sheet: The University of Texas at Austin, Bureau of Economic Geology, scale 1:250,000.
Texas Water Commission, 1992, Regional assessment of water quality in the Rio Grande Basin: Austin, Texas Water Commission, Standards and Assessments Division, variously paged.
U.S. Department of Agriculture, 1985a, Land and resource management plan, Kisatchie National Forest: U.S. Department of Agriculture Forest Service, Southern Region.
U.S. Department of Agriculture, 1985b, Land and resource management plan, Ozark-St. Francis National Forests: U.S. Department of Agriculture Forest Service, Southern Region.
U.S. Department of Agriculture, 1990a, General soil map, Isle Royale National Park, Michigan: U.S. Department of Agriculture Natural Resources Conservation Service, scale 1:190,080.
U.S. Department of Agriculture, 1990b, Land and resource management plan, Ouachita National Forest: U.S. Department of Agriculture Forest Service, Southern Region.
U.S. Department of Agriculture, 1990c, Vegetation management in the Ozark/Ouachita Mountains, Final Environmental Impact Statement: U.S. Department of Agriculture Forest Service, Southern Region, Management Bulletin R8- MB 45.
U.S. Department of Agriculture, 1993, Final environmental impact statement for the BWCA wilderness management plan and implementation schedule: Forest Service, Eastern Region, Superior National Forest.
U.S. Department of Agriculture, 1996, Watershed Plan and Environmental Assessment-Whitewater River Watershed, Olmsted, Wabasha, and Winona Counties, Minnesota: St. Paul, Minn., Natural Resources Conservation Service (also at URL www.mn.nrcs.usda.gov/wwplanea).
U.S. Department of the Interior, 1998, Final environmental impact statement for the general management plan, Isle Royale National Park, Michigan: Denver, National Park Service, Denver Service Center.
Ward, L.B., 1983, Soil survey of Stone County, Arkansas: U.S. Department of Agriculture Soil Conservation Service, 152 p., 41 folded plates.
Back to Contents |
This page maintained by Nichole Bisceglia (nbiscegl@usgs.gov)
Last updated Thursday, July 27, 2000.