Bug Springs Trail Review: Mt. Lemmon's Gateway to Gnar

Bug Springs is Jekyll and Hyde on granite. Most riders love it. A few hate it. The difference almost always comes down to two hike-a-bike sections and whether you consider dragging a bike up waterbars a fair trade for a legitimate mountain descent.

It is. Emphatically.

Stats (Bug Springs)

Distance: 5 miles
Elevation Gain: ~500 ft (north to south)
Elevation Loss: ~1,500 ft
Difficulty: Intermediate-Advanced
Surface: Granite, gneiss, angular embedded chunk, loose sections
Trailhead: Upper (Bug Spring #10 B11/Bear Canyon Picnic Area) and lower (Gordon Hirabayashi Campground or Bug Spring) — connected by Gen. Hitchcock Highway
Trail Network: Mt. Lemmon

Trail map of Bug Springs Trail on Mt. Lemmon showing trailhead parking, route, and ending at Gordon Hirabayashi Recreation Site, Tucson Arizona — Bug Springs Trail drops over 1,500 down the flanks of Mt. Lemmon ending at Gordon Hirabayashi. Loop by riding up Gen. Hitchcock Highway, or shuttle.

The Trail

Mt. Lemmon sits on some of the oldest exposed rock in Arizona — Precambrian granite and gneiss pushed up and sculpted by millions of years of uplift and erosion. Bug Springs puts you on it directly. Angular, embedded chunk with just enough loose material to keep you honest. Raw is the right word. But raw with flow, once you know it.

Mountain bike handlebars in oak woodland along seasonal creek midway down Bug Springs Trail, Mt. Lemmon Tucson Arizona — Midway down Bug Springs the trail threads through oak woodland and crosses the creek. Character shift — fast and forested between the chunk.

The trail opens with a 15-minute hike-a-bike up waterbars. That’s the toll. Pay it and move on. What follows earns it — fast, forested singletrack threading back and forth across a seasonal creek, chunky technical sections that reward commitment, and a character that keeps shifting. Woods, then chunk, then speed, then views.

Just past the two-mile mark a shorter hike-a-bike delivers you to the overlook — massive granite formations framing a full panoramic drop into the Tucson basin. Stop. Actually look at it. Then drop in.

The final stretch opens up. The grade begs for speed and the trail delivers it — rough enough to stay interesting, open enough to let you move. Blast through it.

A view of mountain bike handlebars at granite outcrop overlook on Bug Springs Trail with views toward Gordon Hirabayashi Recreation Site Mt. Lemmon Tucson Arizona — The overlook. Tucson basin dropping away below, the fast final descent of Bug Springs still to come.

Worth Riding?

If you’re willing to hike-a-bike for a legitimate mountain descent, go. Bug Springs is the best entry point into Mt. Lemmon riding for intermediate riders ready to step up from the Molino Basin/Prison Camp intro run. For gnar-lovers it’s a warmup. For everyone else it’s self-selecting — the first waterbar tells you everything you need to know about whether this is your trail.

Skip it if hike-a-bike is a dealbreaker. The truth will set you free.

Local Intel

Riders do climb Bug Springs — be aware of descending traffic if you go up. Park at either end and loop via Gen. Hitchcock Highway, which has a rideable shoulder. The Forest Service has plans for a dedicated DH trail in this area that would eliminate the hike-a-bike sections. When that happens, Bug Springs might have options.

Until then, it stays exactly what it is.

The Tucson MTB Ride Guide provides you everything to tackle mountain biking on Mt. Lemmon (and more) in full — GPS tracks, shuttle logistics, and the complete Lemmon Drop route.