Roby 1893/1922
PDF (4.7 MB)
USGS - Historic Quads
Roby 1893/1915 (ver. 1)
PDF (4.8 MB)
Roby 1893/1903 (ver. 1)
PDF (7.3 MB)
Roby 1893 (ver. 1)
PDF (6.3 MB)
Snyder
1:100,000
Big Spring
1:250,000