Oversize, color geologic maps on a topographic base, scale 1:24,000, depicting various geologic quadrangles in Texas, with informal text booklet, 1990's to the present
OFM0001. Geologic Map of the Bandera Quadrangle, Texas, by E. W. Collins. Oversize geologic map on a color topographic base, scale 1:24,000, with accompanying explanatory sheet, 1997. For a downloadable PDF: OFM0001D. OFM0001. Geologic Map of the Bandera...
OFM0001D. Geologic Map of the Bandera Quadrangle, Texas, by E. W. Collins. Oversize geologic map overlain on a color topographic base, scale 1:24,000, with accompanying explanatory sheet, 1997. Downloadable PDF. To purchase this map in paper format, please order OFM0001. OFM0001D. Geologic Map of the Bandera...
OFM0002. Geologic Map of the Del Rio NW Quadrangle, Texas, by E. W. Collins. Oversize geologic map on color topographic base, map scale 1:24,000, with accompanying explanatory sheet, 1997. For a downloadable PDF, please order OFM0002D. OFM0002. Geologic Map of the Del Rio...
OFM0002D. Geologic map of the Del Rio NW quadrangle, Texas, by E. W. Collins. Oversize geologic map on color topographic base, map scale 1:24,000, 1997. Downloadable PDF. To purchase this map in paper format, please order OFM0002. OFM0002D. Geologic map of the Del Rio...
OFM0003. Geologic Map of the Del Rio SW Quadrangle, Texas, by E. W. Collins. Oversize geologic map on color topographic base, scale 1:24,000, with explanatory text, 1997. For a downloadable PDF version, please order OFM0003D. OFM0003. Geologic Map of the Del Rio...
OFM0003D. Geologic Map of the Del Rio SW Quadrangle, Texas, by E. W. Collins. Oversize geologic map overlain on color topographic base, scale 1:24,000, with explanatory text. 1997. Downloadable PDF. To purchase this map in paper format, please order OFM0003. OFM0003D. Geologic Map of the Del Rio...
OFM0004. Geologic Map of the Tarpley Pass Quadrangle, Texas, by E. W. Collins. Oversize geologic map overlain on color topographic base, scale 1:24,000, with explanatory text, 1997. To purchase this map as a downloadable PDF, please order OFM0004D. OFM0004. Geologic Map of the Tarpley...
OFM0004D. Geologic Map of the Tarpley Pass Quadrangle, Texas, by E. W. Collins. Oversize geologic map overlain on color topographic base, scale 1:24,000, with explanatory text, 1997. Downloadable PDF. To order this map in paper format, please order OFM0004. OFM0004D. Geologic Map of the Tarpley...
OFM0005. Geologic Map of the Tarpley Quadrangle, Texas, by E. W. Collins. Oversize geologic map on color base, scale 1:24,000, with explanatory text, 1997. To purchase this map as a downloadable PDF, please order OFM0005D. OFM0005. Geologic Map of the Tarpley...
OFM0005D. Geologic Map of the Tarpley Quadrangle, Texas, by E. W. Collins. Oversize geologic map overlain on color base, scale 1:24,000, with explanatory text. 1997. Downloadable PDF. To purchase this map in paper format, please order OFM0005. OFM0005D. Geologic Map of the Tarpley...
OFM0006. Geologic Map of the Texas Mountain Quadrangle, Texas, by E. W. Collins. Oversize geologic map on color topographic base, scale 1:24,000, with explanatory text, 1997. To purchase this map as a downloadable PDF, please order OFM0006D. OFM0006. Geologic Map of the Texas...
OFM0006D. Geologic Map of the Texas Mountain Quadrangle, Texas, by E. W. Collins. Oversize geologic map on color topographic base, scale 1:24,000, with explanatory text. 1997. Downloadable PDF. To purchase this map in paper format, please order OFM0006. OFM0006D. Geologic Map of the Texas...