Las Cruces Sheet

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:125000
Date: 1891
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Las Cruces Sheet

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:125000
Date: 1893
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History
On a Group of Volcanic Rocks from the Tewan Mountains, New Mexico and on the Occurrence of Primary Quartz in Certain Basalts (open access)

On a Group of Volcanic Rocks from the Tewan Mountains, New Mexico and on the Occurrence of Primary Quartz in Certain Basalts

A report about volcanic rocks from the Tewan Mountains which present a series of transitions from acid rhyolite, through audesite, to quite basic basalt.
Date: 1890
Creator: Iddings, Joseph Paxson
Object Type: Report
System: The UNT Digital Library