It's a loop that can be accessed from several spots. the two easiest are: 1. from the Chief statue and viewing platform - standing on the platform with the statue to your left, take the trail on the right - the short trail will lead you to the signage for the Laurel Ledge loop.
2. Park at the view on the sharp corner. From here, you may either join Ridge trail at the gate, travel a 100 yards or so, and bear right on to Laurel Ledge, or, you may stand at the gate and look behind you to go the other way on the loop.