Out of downtown Napa on Highway 12 across the Delta to Stockton, then CA-4 and Highway 108 up past Mi-Wuk Village and over Sonora Pass, the highest road on this list.

Day one: out of downtown Napa on Highway 12 across the Delta, then CA-88 up through Pioneer and Kirkwood and over Carson Pass, down past Woodfords to US 395 and south through Topaz to Walker for the night.

Out of downtown Napa on I-80, then Highway 50 the whole way up past Pollock Pines, Kyburz and Echo Summit into the Tahoe basin.

Out of downtown Napa on Highway 12 through Fairfield and Rio Vista to Stockton, then down through Chinese Camp and up Highway 108 past Cold Springs and Dardanelle to Sonora Pass.