The east side of the modern Sierra Nevada mountain range at the edge of the Basin and Range Province. The range crest in the background is Kings Canyon National Park. Photo: Jens-Erik Lund Snee

The east side of the modern Sierra Nevada mountain range at the edge of the Basin and Range Province. The range crest in the background is Kings Canyon National Park. Photo: Jens-Erik Lund Snee

The east side of the modern Sierra Nevada mountain range at the edge of the Basin and Range Province. The range crest in the background is Kings Canyon National Park. Photo: Jens-Erik Lund Snee