Grand Canyon NPS:
04459 Grand Canyon Historic Bass Trails River Scow
Grand Canyon NPS:
03615 Grand Canyon Historic Bass Trails, Mules at Beach
Grand Canyon NPS:
06000 Grand Canyon Historic Bass Trails: River Ferry
Grand Canyon NPS:
03612 Grand Canyon Historic Bass Trails
Grand Canyon NPS:
17752 Grand Canyon Historic Bass Trails Shinumo Camp
Grand Canyon NPS:
05552 Grand Canyon Historic Bass Trails
Grand Canyon NPS:
03618 Grand Canyon Historic Bass Trails
Grand Canyon NPS:
03613 Grand Canyon Historic Bass Trails: William Bass
Grand Canyon NPS:
03634 Grand Canyon Historic Bass Trails
Grand Canyon NPS:
17765 Grand Canyon Historic Bass Trails: William Bass
Grand Canyon NPS:
16517 Grand Canyon Historic Bass Trails: Teddy's Cabin