There is only one main shuttle bus loop in Yosemite Valley.
All shuttle buses visit all stops.
The Curry Village parking area is the right of the picture. The bus on the left of the picture, facing towards the camera and furthest from the parking area, will first visit Yosemite Village, the Visitor Centre and Yosemite Falls. The bus on the right, facing away from the camera and nearest the car park, will first visit Happy Isles and Mirror Lake.