A few miles past Shadow Lake is a trail junction: right is the John Muir Trail heading north towards Yosemite; the left hand option takes one to Lake Ediza.
Mike turns left and a few minutes later he ascends a rocky promontory and the Rain Trip Meadow comes into view. Following Kay's 1989 lead he climbs a slight hill away from the meadow and finds the campsite just as he had remembered it. Perfectly legal (far enough away from the creek) and with a fine view of Shadow Creek, its rapids able to be heard quite clearly.
Photos: Rain Trip Meadow—Sierra Nevada, 2010; Tent—Sierra Nevada, 2010