From introduction: Descriptive data for the Ul2k tunnel system are summarized in table 1. The U12k and U12k.01 tunnels were driven in predominantly air-fall tuffs of the Grouse Canyon and Survey Butte Members of the Oak Spring Formation of- Miocene(?) or younger age. The base of the Grouse Canyon Member is exposed in the road cut 500 to 700 feet east of, and at the same approximate elevation as, the portal U12k tunnel. The contact of the Grouse Canyon Member with the younger Survey Butte Member is at.5+63R and 5+56L in Ul2k.O1L (Personnel tunnel) and at 7+08R and 7+03L in U12k.O1R (Line of sight tunnel). A total of 165 feet of tuff of the Grouse Canyon Member is exposed in and near the tunnel, but only 74 feet of the Survey Butte Member is exposed in the U12k tunnel system.

From introduction: USGS is appraising the possibility, however slight, that the ground water beneath the Nevada Test Site, possibly contaminated by nuclear detonations, may carry radioactive fission products to places where they may constitute a public hazard.

From introduction: This report on the geology of the Powder River Basin is one of a series of reports by the Geological Survey on sedimentary basins in the United States.

An index and geological map of Nevada showing the Yucca Flat quadrangle.

An index and geological map of Nevada's Plutonium Valley quadrangle in Nye and Lincoln Counties, Nevada

Geologic map of the Paiute Ridge Quadrangle, Nye and Lincoln Counties, Nevada.

From introduction: The gravity survey of the Nevada Test Site and contiguous areas of southern Nevada and southeastern California has been made by the U.S. Geological Survey on behalf of the U.S. Atomic Energy Commission. The objective of this study is to delineate and interpret gravity anomalies and regional trends so that the configuration and depth of the buried erosional surface of the Paleozoic rocks may be determined.

Description and outline of the geology of the U12j and U12j.01 tunnels in the Survey Butte Member of the Piapi Canyon Formation in Nevada.

Abstract: A large amount of water leaks through the floor of Lake McMillan to underground solution channels or openings in the gypsiferous Seven Rivers Formation.

Introduction: Geologic studies by the U.S. Geological Survey in support of the U.S. Air Force's Project Pluto in Area 401 of the Nevada Test Site were made on behalf of the U.S. Atomic energy Commission.

This is a map of the geology of Jackass Flats quadrangle.

This is a photo-geologic map of the Skull Mountain Quadrangle at the Nevada Test Site.

Geologic map of the Topopah Spring Southwest quadrangle, Nevada with notations for specific topographic features and profile views. Scale 1:24,000.

A geologic map of the Topopah Spring northwest quadrangle, Nye County, Nevada

This is a geological map of the Frenchman Flat quadrangle of Nye County, Lincoln, and Clark Counties, Nevada.

This is a geologic map of the Scrugham Peak quadrangle in Nye County, Nevada.

This is a geological map of the Silent Butte quadrangle in Nye County, Nevada.

This is a geological map of the Cane Spring quadrangle in Nye County, Nevada.

This is a geological map of the Buckboard Mesa quadrangle in Nye County, Nevada.

Map of the Timber Mountain Quadrangle in Nye County, Nevada.

Map of the Mine Mountain Quadrangle in Nye County, Nevada.

A geological map and sections of the Ammonia Tanks quadrangle at the Nevada test site, Nye County, Nevada

Introduction: This report describes the occurrence, movement, and discharge of perched ground water in tuffaceous rocks that cap and underlie Rainier Mesa -- the site of the first series of underground nuclear detonations made by the Atomic Energy Commission at the Nevada Test Site.

This is a geological map of the Striped Hills quadrangle Nye County, Nevada.