parking. Although some many have picnic areas and restrooms. There are some that have even have Wi-Fi access， California rest areas are typically roadside facilities that provide， at a minimum， its always best to have an alternate rest stop just in case. 。
travel and visitor information and yes even RV dump station facilities， where RVers may empty their sewage holding tanks. They are mainly maintained by the California Department of Transportation. (Caltrans). Some may be closed due to maintenance issues without notice，。