dirt road from MWTC to up near the Pass. Maybe ride xc till over, then parallel the highway down to Fun Area (some game trail thru there). Follow the old road out from Fun Area, cross creek, ride south side of creek down stream to Chipmunk Flat. Cross back over, and ride hwy down to Kennedy... Below kennedy ascend up the old abandoned road toward Eagle Meadow road that is near the picnic area. Not the one that is by the Vista.
Once up high again, ride established dirt roads toward Pinecrest Peak, down to Strawberry. I believe the railroad grade will get you from Strawberry down to Twain Harte.