A few years back, the U.S. Forest Service funded historian Dan Scurlock to prepare an environmental history of the middle Rio Grande basin. It’s a treasure, referred to lovingly by researchers and folks in the climate/water/environmental policy community here. But it’s very hard to come by a copy.
I recently discovered that the Forest Service has made PDF’s of the whole thing available on line:
From the Rio to the Sierra: An Environmental History of the Middle Rio Grande Basin