The Richfield City Trails Committee has made incredible use of a federal grant to build one of the most exciting, new trail systems in Utah. There is a large parking area just off of I70 on exit 40. Or you can access it via 300 N in Richfield. 300 N turns into a dirt road that can be used to shuttle the trails or there are several parking areas along the way to the top of the hills.
You'll find technical downhill trails in Spinal Tap, Juniper Drop, and Telegraph. You'll also have flow trails on Faulty, Kiln It, Cairnage, and others. All trails have been expertly built with berms, drainage, and high fun factor. Trails are continuing to be developed.
There is some undeveloped camping available at the top of the trails. Check with local BLM about camping requirements.