I would pay good money for a field guide/itinerary to accompany "Assembling California". More directly related to the Green River, I found Wayne Ranney's "Carv

I would pay good money for a field guide/itinerary to accompany "Assembling California". More directly related to the Green River, I found Wayne Ranney's "Carving Grand Canyon: Evidence, Theories, and Mystery" an accessible/engaging intro to deep geological mysteries.