Early herdsmen were using a volcanic lava tube to shelter from fierce desert sun at least 7,000 years ago, new research reveals. Lava tubes are caves left behind by underground lava flows – at ...

A trip to the Mojave Lava Tube in Mojave National Preserve is an experience not to be missed in California. Yes, the roads may be a little rough, but you will just have to grin and bear the bumps ...