This was our stop at Birch Springs Knoll Road. This is a moderate one way trail in Dixie National Forest.
This trail goes by Miller Knoll and lots of lava, part of the extensive Black Rock Valley. I filmed more in this area (toward the end of video) [ youtube video ]

Markagunt Plateau is a volcanic field in southern Utah, United States. Formed in a region of older volcanics, it consists of several cinder cones and associated lava flows. Some of the lava flows feature lava tubes such as Mammoth Cave, while others have formed lava dams and lakes like Navajo Lake. Volcanism took place during the Pliocene and latest Pleistocene but may have continued into the Holocene; legends of the Southern Paiute may reflect past eruptions.