Last of the Great Unknown

Name: Last of the Great Unknown
Genre: 纪录
Released: 2012-04-26
Duration: 22 min
Rating: 8
Cast: Bill Formanek, Todd Martin, Dave Nally, Rich Rudow, Guy Smith

资料上映日期: 2012-04-26
原始地区: 美国
资料片长: 22分钟
来源评分: 8

原始简介

The story of Grand Canyon's hidden slot canyons, the canyoneers who systematically explored their drainages, and the secrets hidden deep within their walls.