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Geologic Maps

This map shows surficial geology maps published by the Bureau of Economic Geology.
There are many overlapping maps, use the layers tool in the top right corner of the map to help filter and navigate the items.

Note: Maps with a scale of 1:500,000 or greater are excluded for display purposes, but can be found in the individual map categories below. State-wide maps can be found in Thematic Maps

Browse by map category:
Cross Sections
Cross Sections

Sets of cross sections through selected areas of Texas, with accompanying explanatory text booklets

Geologic Atlas of Texas
Geologic Atlas of Texas

38 geologic map sheets that cover the entire state of Texas at 1:250,000 scale.

Geologic Quadrangle Map
Geologic Quadrangle Map

Maps at (mostly) quadrangle scales depicting the surface geology of selected counties and areas in Texas from the 1950's-1980's

Miscellaneous Map
Miscellaneous Map

Specialized maps and charts covering a wide variety of topics and areas including historic Texas geological maps, Enchanted Rock, Big Bend National Park, Lake Travis, and more.

Open-File Map
Open-File Map

Geologic maps of quadrangles in Texas largely at 1:24,000, with some compilation maps.