See the steep road on the left? I crashed and burned on my mountain bike trying to go down it some time back. Straight over the handlebars! Haha. It's just a lot of loose sand. If it was hard-packed dirt, I'd have probably not performed my aerial acrobatics. I don't know what I was even thinking trying to go down it! It's so steep that it's hard to even walk up or down without slipping in the sand. The less steep sandy road on the right is awesome for huffing up and down if you're in the mood to sweat it up in this ethereal looking place. It's right on the edge of Palmdale, just a few minutes from where I live. There's a maze of dirt /sandy roads that I've yet to fully explore. It's pretty awesome for mountain biking IF you don't mind some hill climbing...and bike pushing, since some of the hills are just too steep to pedal up.