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Page 6426, results 160626 - 160650

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Pecos National Monument, New Mexico: Its geologic setting
Ross Byron Johnson
1969, Bulletin 1271-E
The ruins of the pueblos and missions of Pecos lie on the east bank of Glorieta Creek near its junction with the Pecos River at the south end of the Sangre de Cristo Mountains in north-central New Mexico. Here the Pecos River and Glorieta Creek have formed a broad rolling...
Perspective center determination
J.D. McLaurin
1969, Open-File Report 70-209
This program determines coordinates of the perspective center of a stereoplotter projector by bringing two bundles of rays into a best fit coincidence in a space-resection solution. One of the bundles of rays is defined by the perspective center and the grid intersections on a grid plate. The other bundle...
The Colorado River region and John Wesley Powell
Mary C. Rabbitt, Edwin D. McKee, Charles B. Hunt, Luna Bergere Leopold
1969, Professional Paper 669
A century ago John Wesley Powell-teacher, scientist, and veteran of the Civil War-set out to explore the unknown reaches of the Colorado River. He emerged from the forbidding canyons with a compelling interest in the nature of the western lands and how they could be developed for the greatest benefit...
Geology of the Reventado River Watershed, Costa Rica, Part A, General geology
R.D. Krushensky
1969, Open-File Report 69-147
Irazu volcano, a large composite cone, consists of interbedded lava flows, lahars, and ash beds. This rock sequence, named the Irazil Group, has been divided into four formations; from the base: Reventado Formation, Sapper Formation, Birris Formation, and Cervantes Formation. Only the Reventado and Sapper Formations crop out in the...