Introduction: During the course of geologic reconnaissance on the west flank of the Sierra Nacimiento near La Ventana Mesa, Sandoval County, N. Mex., several outcrops of carbonaceous material in the Dakota sandstone and the Gibson coal member of the Mesaverde formation have been examined and estimated to contain as much as 0.03 percent equivalent uranium. These outcrops are in an area that is an extension of the La Ventana Mesa area.

Report discussing the U.S. Geological Survey's investigation for uranium in the Datil area, west-central New Mexico, and in the Cerrillos, Glorieta, and Tecolote districts and the Las Vegas and Colfax Sill areas of north-central to northeastern New Mexico during the fall of 1953. Information regarding the reconnaissance's results is divided by area.

Report discussing beryllium deposits in the form of beryl, helvite, and beryllian idocrase in a small area of the Victorio Mountains of Luna County, New Mexico.

Report discussing the U.S. Geological Survey's investigation of uranium-bearing coal, carbonaceous shale, and carbonaceous sandstone occurring around La Ventana Mesa in New Mexico.

Abstract: The Jemez Mountains volcanic region, on the west margin of the Rio Grande rift in north-central New Mexico, is the site of studies whose objective is power development using geothermal heat. This report summarizes geohydrologic data obtained to provide background information relative to the geothermal exploration and to investigate the usefulness of hydrology in assessment of the geothermal resource. Eleven tables present chemical, temperature, discharge, and other data for springs, wells, and streams. Accompanying figures show locations of the data points and present temperature profiles and geophysical logs for selected wells.

A report regarding uranium-bearing coal and carbonaceous shale in La Ventana Mesa Area, in Sandoval County, New Mexico. This report concerns work done on behalf of the division of raw materials of the U.S. Atomic Energy Commission.