Don't transfer between from ESTA to YARTS in Lee Vining.? ESTA and YARTS have finally agreed on using the Tavern Road Park and Ride stop in Mammoth Lakes as the transfer point between the two services.? The northbound ESTA bus from Lone Pine and Bishop arrives at 8:20 am, the YARTS bus to TM and YV leaves at 8;50, so this should be a reliable connection.