If you need a break between the Bay Area and Tahoe, The Maidu Museum is only minutes off the I-80 freeway. The thirty acres site has an one mile loop which will surely get the kinks out of your legs. The walk provides bedrock mortars,petroglyphs, towering oaks and a running stream (and lots more!). If possible, take the guided docent tour given each Saturday morning. The staff and volunteers do an excellent job in helping understand a culture that had thrived for thousands of years.