Flume 6 at the Walnut Gulch experimental watersheds is half the size of Flume
1.
Flume 6.
Watershed scientists gather to hear about the Walnut Gulch experimental watersheds.
Betsy Warnemuende (USDA ARS NSERL) and Bill Shuster (USEPA ORD) find a quiet
spot in Tombstone to talk over the research plan. 
Doug and Betsy come across a Gila Monster at Kartchner Caverns State Park
Gila
The scenery is hazed by the smoke from the California fires
A wash is lined with white oak, willow, and mesquite