Cinder cones are small hill-sized volcanoes with steep sides, conical shapes and a small crater at the top. There are over 30 in this area of the Mojave, along with thick black basalt lava flows and underground lava tubes for the adventurous to explore. The eruptions that formed these cinder cones and lava flows found in this area began 7.6 million years ago and finished about 10,000 years ago. It is thought that the lava came to the surface as the region was pulled apart creating the Basin and Range province.
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