Mountain Home overlies well-developed soil horizon with thick caliche zones that sits on older basalt flow. Top of Cinder Cone Butte. NW of Mountain Home. View looking south over the western Crater Ring - a large summit caldera that originally contained a lava lake. Higher elevation ramparts formed by fire fountain eruptions that threw spatter and bombs out of the pit crater.
Upper photo shows east end of caldera, lower photo shows west end of caldera.