"[Guffey Butte] strikes Snake River at mouth of Dry Branch after coming down it for 3 miles. No bluffs on south side of River whare road strike. Thare is a bluff to the right of the road below whare it strikes river, ? mile, with a vary pirty tower or chimney by the side of it. Looks like a monument of Black Val's rocks... ."

ETSI, pg. 77

"Guffey Butte is just one more in a series of landmarks on the South Alternate: Castle Butte, Wild Horse Butte, Guffey Butte, and so on. Guffey Butte is named for G. M. Guffey, an engineer and friend of Col. William Dewey who helped develop the Silver City mining district."