Blackleaf Canyon is one of the entrances through the Rocky Mountain front. The mtns are steep faulted limestone slabs over riding the praire and running north - south for many miles.
We climbed "Volcano Reef" north of the canyon, which is neither volcanic, nor a reef. There are areas where the rock contains identifiable marine fossils which gave early farmers the idea that it was a reef, instead of the fault blocks.
This is the first range, so the view to the east overlooks the prarie, traditional home of the blackfeet & piegan. The west view looks up Mt Frazier and into the Sawtooths.