On Monday we continued on to Sunset Crater National Monument where a volcanic eruption happened in about 1100 CE (or A.D. to us older folks). The ash actually made the land more fertile for awhile for the native people at the time. The area looks like Hawaii with its lava flows all over the place. We took a nice hike around the area. The other part of the same area, a bit further north, is Wuptaki National Monument, where there are numerous pueblo-style ruins from the of Sinagua people of that era. It is very desert now, but was somewhat more fertile then, although still very arid. Campgrounds are few and far between up this way, so we stayed in Tuba City RV Park - part of the Quality Inn of the Navajo Nation here, and had a great dinner at the Hogan Restaurant next door.