Clearwell Reservoir – Rock Wren Trail loop from The Villas at Starr Pass

If you're looking for a challenging and scenic mountain biking adventure in Tucson, the Clearwell Reservoir – Rock Wren Trail loop from The Villas at Starr Pass is definitely worth your time. This difficult 16.6-mile (26.7 km) mountain biking route packs in 1205 feet (367 metres) of elevation gain, typically taking around 2 hours and 26 minutes to complete. It's a signature ride for intermediate to advanced riders seeking technical terrain and stunning desert views.

What to expect on Clearwell Reservoir – Rock Wren Trail loop from The Villas at Starr Pass

This loop takes you deep into the Tucson Mountains, offering a journey through classic Sonoran Desert scenery. You'll navigate notably rocky terrain, with sections of technical singletrack, craggy drops, and washes that demand good bike handling skills. Keep an eye out for iconic Saguaro cacti lining the trail and dramatic vistas of Golden Gate Mountain, Cat Mountain, and Little Cat Mountain. The route also passes by the Clearwell Reservoir, adding a touch of variety to the landscape. While some parts are manageable, expect sustained climbs and technical sections that might require you to push your bike, making it best suited for experienced mountain bikers.

Planning your visit

The Richard Genser Starr Pass trailhead, accessible via Clearwell Road at The Villas at Starr Pass, is your primary access point for this loop. The best time to tackle this ride is during the cooler months, from fall through spring, as Tucson summers can be extremely hot and challenging. Always carry plenty of water, especially outside of winter, as the desert environment can be unforgiving. There are no specific permits or fees mentioned for accessing these trails within Tucson Mountain Park.

Trail details

• Distance: 16.6 miles (26.7 km)
• Elevation gain: 1205 feet (367 metres)
• Difficulty: difficult
• Estimated time: 2 hours and 26 minutes