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Idaho
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Massacre Rocks State Park
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Underworld Cluster
Underworld Cluster
9
routes
4b – 6c
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Subsectors
· 3
Sectors
Grades
Routes
Height
Phalanx
4b – 5b
3
routes
3 m
Hades
5a – 5a
2
routes
3 m
Trojan
5c – 6c
4
routes
5 m
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