Geologic map that depicts the surface geology of Borden, Scurry, Fisher, Martin, Howard, Mitchell, and Nolan Counties and parts of Glasscock, Sterling, Coke, Runnels, Taylor, Jones, Dawson, Martin, Lynn, Garza, Kent, and Stonewall Counties.

Geologic map that depicts the surface geology of Cochran and Hockley Counties and parts of Bailey, Lamb, Yoakum, Terry, Hale, Lubbock, and Lynn Counties.

This Guidebook represents an updating of Bureau of Economic Geology Guidebook No. 5, Field Excursion-Geology of Llano Region and Austin Area. It also represents a modification of Geology of the Llano Region and Austin Area, Texas, published by the Shreveport Geological Society in 1971.

Geologic map that depicts surface geology of Tarrant, Dallas, Kaufman, Ellis, Johnson, Somervell, and Rockwall Counties and parts of Parker, Hood, Erath, Bosque, Hill, Navarro, Henderson, Van Zandt, and Hunt Counties, Texas.

Geologic map that depicts the surface geology of Shackelford, Stephens, Palo Pinto, Callahan, and Eastland Counties and parts of Jones, Taylor, Runnels, Coleman, Brown, Comanche, Erath, Parker, and Hood Counties, Texas.

Geologic map that depicts the  surface geology of Hansford, Ochiltree, and Lipscomb Counties and parts of Moore, Hutchinson, Roberts, Hemphill, and Sherman Counties.

Geologic maps that depicts the surface geology of McLennan, Limestone, and Falls Counties and parts of Bosque, Hill, Navarro, Freestone, Leon, Madison, Robertson, Milam, Bell, Lampasas, Coryell, and Hamilton Counties, Texas.

Geologic map that depicts surface geology of Swisher, Briscoe, Hall, and Childress Counties and parts of Randall, Armstrong, Donley, Collingsworth, Hale, Floyd, Motley, and Cottle Counties.

Geologic map that depicts the surface geology of Galveston and Chambers Counties and parts of Waller, Harris, Liberty, Jefferson, Orange, Brazoria, Matagorda, Wharton, and Fort Bend Counties.

Geologic map that depicts the surface geology of Montgomery, San Jacinto, and Hardin Counties and parts of Madison, Trinity, Polk, Tyler, Jasper, Newton, Orange, Jefferson, Liberty, Harris, Waller, Grimes, Walker, and Robertson Counties.