The site of late-Pliocene to early Holocene activity, the volcanic field consists of lava domes, cinder cones, and maars with eruptive products varying from basalt to rhyolite.
This area exhibits evidence of late-Pliocene to early Holocene volcanic activity, characterized by a variety of lava formations, including domes, cones, and craters, with varying compositions of rock types such as basalt and rhyolite.