Lavatube, Mojave National Preserve
The remnants of a distant geologic past in the Mojave Desert where volcanic activity was abundant. This part of the Mojave Desert is dotted with plenty of lava rock and cinder cones of once active volcanoes.
The location on the map is approximate based on what I could best visualize from Google Earth (and some photos I took of the area) and trying to remember where I turned off Kelbaker road before it declined to Kelso. Even after turning off the road, it was about an additional 10 minutes of driving along poor dirt trails. Was I surprised when my professor told me before we turned off (I was the other driver in the group) I had to speed up on the dirt road (as high as 40 MPH) to skip the ripples. Well, you can understand if you were drivng on this dirt road with an Honda Accord like I was.
The exact geographical location of this lavatube I don't have since I didn't think about having a GPS or asking others in this research trip for the geographic coordinates at that time. It may also be best that it wouldn't be publicized on the world wide web so that the beauty of the desert can be preserved and also for safety reasons.
I wouldn't recommend venturing through this area if you aren't a seasoned explorer familiar with the Mojave National Preserve. I wouldn't recommend visiting here during the summer/early fall months (heat+monsoonal moisture) nor during storm systems.