Massey Meadows is a beautiful place to camp. Mostly wide open meadow like spaces where you just pull up your camper and park (dispersed camping). There are a lot of beautiful places you can explore, including Massey Cave. However, usage is so high that I recommend trying to camp a little lower in the Dry Fork Canyon area. The two are connected by a wonderful trail system called the Flume Trail. The Flume Trail runs next to the river, and is absolutely beautiful. It's huge for mountain biking and hiking, and offers 10 to 24 miles of trail. There are several developed campsites on both sides of the road, each with fire rings and picnic tables. I highly recommend camping in Dry Fork/Red Cloud Loop/Massey Meadows area.