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Related Historical Markers

Portneuf Gap-Gittins Cutoff Historic Loop
 
By Cosmos Mariner, July 10, 2024
Copper Mines in the Pocatello Formation Marker
SHOWN IN SOURCE-SPECIFIED ORDER
1 ► Idaho, Bannock County, Pocatello — Copper Mines in the Pocatello Formation — Portneuf Gap-Gittins Cutoff Historic Loop —
On South 5th Avenue (Old U.S. 91) 0.3 miles west of North Blackrock Canyon Road, on the right when traveling west.
2 ► Idaho, Bannock County, Pocatello — Gateway to the Pacific Northwest — Portneuf Gap-Gittins Cutoff Historic Loop —
On South 5th Avenue (Old U.S. 91) 0.3 miles west of North Blackrock Canyon Road, on the right when traveling west.
3 ► Idaho, Bannock County, Pocatello — Why is Portneuf Gap Here? — Portneuf Gap-Gittins Cutoff Historic Loop —
On South 5th Avenue (Old U.S. 91) 0.3 miles west of North Blackrock Canyon Road, on the right when traveling west.
4 ► Idaho, Bannock County, Pocatello — Utah and the Northern Railway — Portneuf Gap-Gittins Cutoff Historic Loop —
On South 5th Avenue (Old U.S. 91) at West Blackrock Road, on the right when traveling west on South 5th Avenue.
5 ► Idaho, Bannock County, Pocatello — Port of Entry — Portneuf Gap-Gittins Cutoff Historic Loop —
On South 5th Avenue (Old U.S. 91) at West Blackrock Road, on the right when traveling west on South 5th Avenue.
6 ► Idaho, Bannock County, Pocatello — Oregon Short Line & Union Pacific — Portneuf Gap-Gittins Cutoff Historic Loop —
On South 5th Avenue (Old U.S. 91) at West Blackrock Road, on the right when traveling west on South 5th Avenue.
 
 
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Nov. 11, 2026