GEOLOGICAL SURVEY BULLETIN 707. PLATE XXXVIII 
GORGE. 
HANGING BRIDGE, ROYAI 
e Hanging Bridge, in the narrowest part of the canyon, is a striking feature. When the i 
was built there was not room = this point for a th river and reiicond on by side, so a bridge 
was necessary. The easiest way to construct such a bridge was to us the i st of the 
canyon as abutments hacige he con e the ha iy fr rom tru — as show 
joints in the granite are ne varly vertical, and consequently the walls haces Mitte ‘beckwi od 
slope. Photograph furnished by the Denver & Rio Grande Western Railroad. 
