And another FYI… the shuttle system in Yosemite is so extensive that given sufficient planning you can get anywhere you want. Between the YARTS that runs from Mammoth or Merced into the park, the hiker/tour bus that runs between the pass and the valley, and the free shuttles that run on Tioga and the others that stay in the valley – you can go anywhere, given you have cash for bus fare.
schedules at:
Yarts.com
yosemitepark.com
YARTS will pick you up at the aiport or at the AMTRAK station in Merced, and has 5-6 stops in Mammoth.
The shuttle to SEKI is less extensive, but connects to the free shuttles, such as they are:
http://www.nps.gov/seki/planyourvisit/publictransportation.htm


