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Description
Menan Buttes is the name for 2 tuff cones in Idaho that overhang the Snake River. River extensions such as Henry's Fork and South Fork are seen in this image as part of the river, although the twin cones have not erupted since the Pleistocene period.

Description
Menan Buttes is the name for 2 tuff cones in Idaho that overhang the Snake River. River extensions such as Henry's Fork and South Fork are seen in this image as part of the river, although the twin cones have not erupted since the Pleistocene period.