The field work upon which this article is based was done in March and April, 1914. From Garnet Canyon, near the west end of the Granite Gorge, the route followed the Tonto trail along the so-called lower plateau, or Tonto platform, to Red Canyon, at the east end of the Granite Gorge.
Additional Publication Details
USGS Numbered Series
A reconnaissance of the Archean complex of the Granite Gorge, Grand Canyon, Arizona