Doug explores the slot canyons of Utah's Zion National Park and uncovers the history of Hoover Dam.
- Friday, January 31 from 6:00 p.m. - 6:30 p.m. on OPB TV
- Saturday, August 16 from 12:30 p.m. - 1:00 p.m. on OPB PLUS
- Saturday, August 16 from 6:00 p.m. - 6:30 p.m. on OPB PLUS
- Friday, October 31 from 12:00 p.m. - 12:30 p.m. on OPB PLUS