Grand Canyon Historic - Kaibab Suspension Bridge Tunnel LOOKING THROUGH TRAIL TUNNEL ON S SIDE OF COLORADO RIVER ONTO THE KAIBAB BRIDGE. PARK NATURALIST, EDWIN MCKEE, STANDS IN PROFILE AT THE RAILING. 17 JUNE 1949. , GRANT.

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Keywords: america, american, archive, arizona, canyon, coconino, conservation, country, county, grand, historic, history, land, lands, mohave, national, natural, nature, np, park, parks, personnel, preserve, public, service, usa, widlife, wilderness