Trap Ridges

| View Cart ⇗ | Info

“Map and section of trap ridges near Woodbury. The topography is indicated by sketched contours, with hachures for trap bluffs. The lower sandstone slopes are all covered, and the northern bluff of the western group of ridges is quite buried in drift. The crystalline rocks appear on the east. The section suggests an interpretation of the surface forms.” -Walcott, 1901


Walcott, Charles D. Annual Reports of the Department of the Interior (Washington, DC: Government Printing Office, 1901)


TIFF (full resolution)

1683×2400, 1.1 MiB

Large GIF

718×1024, 160.5 KiB

Medium GIF

448×640, 82.0 KiB

Small GIF

224×320, 26.4 KiB