Map of the central mineral region : chiefly from actual surveys made under the direction of Theo B. Comstock, geologist for central Texas.
Description: Map shows geological composition of surface strata, towns, creeks, crossings, railroads, and names of mountain peaks for Mason, Llano, McCulloch, Gillespie, Blanco, San Saba, Kimble, and Burnet counties, and portions of Hays and Travis counties. Includes notes and key to colors used to represent strata types. Relief shown by contours and spot heights. Scale [ca. 1:247,300].
Creator: Nagle, J. C. (James C.),1865-1927
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