If you have wheeling on the brain you'll be happy to know there's a number of four-wheel drive-related activies on tap this weekend in California, Missouri, and Arizona.   

Mojave Road Adventure, Barstow, California.  Friday through Sunday.  More info: www.4x4training.com.

Beginning 4x4 Training, Big Bear Lake, California.  Saturday and Sunday.  More info: www.discoveroffroading.com.

Rrock Extreme Rockcrawl Competition Series Event #1, Hannibal, Missouri.  Saturday only.  More info: www.hannibalrocks.com.

Lucas Off Road Racing Series, Surprise, Arizona.  Saturday and Sunday.  More info: www.lucasoiloffroad.com.