Thistle Lake Drainage Tunnel on October 01, 1983
Opening the Drainage Tunnel at Thistle Lake on October 01, 1983
View of the Route 6 Road Cut from the Spanish Fork River on October 01, 1983
Halls Falls and Thistle Water Diversion Area on October 01, 1983
Debris Around the Thistle Water Diversion Intake on October 05, 1983
Thistle Diversion Tunnel on October 05, 1983
Thistle Mud Slide and Thistle Lake Shore on October 05, 1983
Aerial View of Thistle Lake and Thistle Construction Area on October 03, 1983
Aerial View of Thistle Lake on October 03, 1983
Aerial View of the Thistle Mud Slide on October 03, 1983
Aerial View of Spanish Fork Canyon Road Diversion Construction on October 03, 1983
Aerial View of Billies Mountain and Thistle Mud Slide on October 03, 1983
Thistle Detour Sign on October 19, 1983
Thistle Railroad Diversion Tunnels on October 19, 1983
Construction Equipment and Workers at Thistle on October 19, 1983
Thistle Lake Drainage Tunnel on October 19, 1983