Thought so on Sunset Crater. Malpais is hardened lava. I was just wondering if they were taken at or near El Malpais National Monument in western NM. My wife owns some property there including a couple of craters like Sunset.
http://www.nps.gov/elma/index.htmhttp://icecaves.com/http://geoinfo.nmt.edu/tour/federal/monuments/el_malpais/zuni-bandera/cinder_cone.html