Shuttle in San Francisco

Airport Express

Runs a scheduled shuttle every two hours (from 5:30am to 9:30pm) between Oakland Airport and Sonoma ($34) and Marin ($26) counties.
Ferry in San Francisco

Golden Gate Ferry

Ferry service from the Ferry Building to Sausalito and Larkspur.
Bus in Marin County

Marin Transit

Shuttle in Lost Coast

Lost Coast Adevnture Tours

Bus in Gold Country

Amador Transit

Service between Sutter Creek, Jackson, and Buckthorn with connecting service to Amador City, Plymouth and Sacramento.
Bus in Gold Country

Calaveras Transit

Weekday rides between Angels Camp, San Andreas and Arnold. You can catch it mid-route, just flag it down.
Bus in Lake Tahoe Western Shore

Tahoe Area Rapid Transit

Bus in Yosemite National Park

Tuolumne Meadows Hikers' Bus

Bus in Yosemite National Park

Glacier Point Hikers’ Bus