Cite
MLA
Geological Survey (U.S.) (cartographer). Texas (Brewster County) Chisos Mountains quadrangle U.S. Geological Survey. - University of Texas Libraries Collections. 1923-01-01. https://collections.lib.utexas.edu/catalog/utlmaps:646c81ab-047d-4445-a102-9bf961f7835fAPA
Geological Survey (U.S.) (cartographer). (1923-01-01). Texas (Brewster County) Chisos Mountains quadrangle U.S. Geological Survey.. Retrieved June 01, 2026, from https://collections.lib.utexas.edu/catalog/utlmaps:646c81ab-047d-4445-a102-9bf961f7835fChicago
Geological Survey (U.S.) (cartographer). Texas (Brewster County) Chisos Mountains quadrangle U.S. Geological Survey.. 1923-01-01. "Texas (Brewster County) Chisos Mountains quadrangle U.S. Geological Survey. – Collections". University of Texas Libraries Collections. <https://collections.lib.utexas.edu/catalog/utlmaps:646c81ab-047d-4445-a102-9bf961f7835f> (01-June-2026).Note that these citations have been automatically generated, please verify that citation is correct and contains all necessary information.