Skyline to Black Star

This 21-mile out-and-back route starts on Skyline Drive in Corona and travels deep into the Santa Ana Mountains, linking several rugged trails and fire roads. The route descends through Tin Mine Canyon, crosses Tin Mine Creek, then climbs up the Connector Trail to the Skinsuit Trail. From there, it continues to Forest Road 3S04 and follows Black Star Canyon Road to the Black Star Canyon Falls Trailhead.

With its mix of exposed ridgelines, steep climbs, and canyon terrain, this is a challenging but scenic route ideal for experienced hikers or trail runners.

The route begins at Skyline Drive Trailhead, climbing gently along a wide fire road with expansive views toward the Inland Empire and the Santa Ana Mountains. After a few rolling miles, you’ll descend toward Tin Mine Creek, a shaded canyon lined with sycamores, oaks, and chaparral. Depending on the season, the creek crossing can range from a trickle to a refreshing, flowing stream.

From the creek, pick up the Connector Trail, a short but steep link that climbs out of Tin Mine Canyon to reach Skinsuit Trail. This rugged singletrack ascends through exposed terrain with sweeping views across canyons and ridgelines.

The route eventually joins 3S04, a wide forest road that contours through rolling hills and connects to Black Star Canyon Road. The final stretch descends steadily to Black Star Canyon Falls Trailhead, a popular access point to the falls and a natural turnaround point for this route. After taking in the views (or a well-earned break), retrace your steps back toward Skyline Drive.

Flora & Fauna

• Flora: Coastal sage scrub, chaparral, sycamore, oak, and seasonal wildflowers in spring.

• Fauna: Deer, coyotes, hawks, lizards, and rattlesnakes in warmer months.

Permits

• No wilderness permit is required for day use.

Best Season

• Spring and fall are ideal for cooler weather and wildflowers.

• Summer can be extremely hot and exposed—start early and carry ample water.

• Winter may bring muddy trail conditions and higher creek levels.

Need to Know

• Overall there is significant elevation gain and descent.

• Water is seasonal, carry what you need.

• There is little shade along the ridgelines, bring sun protection.

• Skinsuit Trail is steep and rugged with loose sections; sturdy footwear recommended.