What is the Porcupine Rim Trail like?

The "other mountain biking trail" at SFRA is the Porcupine Rim Trail, popular and difficult in it's own right. The west trailhead is located on the eastern end of SFRA, 7 miles up the Sand Flats road from the Entrance Station.

The first part of the trail is popular with motorcycles and jeeps. At mile 8.6 the trail becomes single track with steep ledges and is suitable only for biking and hiking. All motorized vehicles must turn around at this point including e-bikes. The official trail length from the trailhead to highway 128 is 14.4 miles but because it is a one-way trail, without a shuttle, it is 30 miles round trip. The trail offers a variety of riding surfaces in a remote and rugged area of outstanding scenery.

Please note that travel is limited to designated trails and that cross-country travel is not permitted. Stay on the trail. Pack it in. Pack it out. Responsible recreation keeps this trail clean, scenic and open.

For more information go to the Trails and Maps sections.

Show All Answers

1. How do I get to the Sand Flats Recreation Area?
2. Who manages the Sand Flats Recreation Area?
3. What is the user fee at the Sand Flats Recreation Area?
4. Does my federal or state pass work at Sand Flats?
5. Where do my fees go?
6. Does Sand Flats have an annual pass? How do I purchase a pass?
7. Can I camp at the Sand Flats Recreation Area and what does it cost?
8. What are the Sand Flats Recreation Area camping regulations?
9. Does Sand Flats take group site reservations?
10. What is minimum impact?
11. What is biological soil crust?
12. What are the Sand Flats Recreation Area day use regulations?
13. What do I need to know for playing it safe when riding my bike at Sand Flats?
14. Where can I ride my e-bike at Sand Flats?
15. How difficult is mountain biking on the Slickrock Bike trail?
16. What is the Porcupine Rim Trail like?
17. What is the LPS trail?
18. Where can I hike at Sand Flats?
19. Does Sand Flats have 4x4 trails?
20. What are some safety tips for traveling in the Sand Flats backcountry by motorized vehicle?
21. Where can I ride my ATV at Sand Flats?
22. Where can I ride my UTV at Sand Flats?
23. Where can I ride my motorcycle at Sand Flats?
24. Can I bring my dog?
25. Do you waive fees for volunteer groups?