Trinity Mountains Area Hikes

Rainbow Lakes
Distance: 9 miles roundtrip
Climb: moderate
Difficulty: moderate
Usage: moderate
Location: At Mountain Home, exit off Interstate 84 and merge northeast onto US Highway 20. Drive 20 miles, then turn onto the Anderson Ranch Reservoir Dam Road. Proceed across the dam to a fork in the road. Bear right at this fork onto Forest Road (FR) 113 and proceed 8.5 miles to Fall Creek. At Fall Creek, bear left onto the gravel FR 123 and continue 5 miles to the junction with FR 129. Turning onto FR 129, proceed 2 miles before reaching another junction. At this junction, bear right and continue on this steep, narrow road to Rainbow Lakes Trail located at the Big Trinity Lake Campground and Trailhead.

With nearly continuous views of Trinity Mountain rising in the distance, this trail leads hikers through exceptional wildflower covered meadows past nine alpine lakes filled with rainbow and brook trout. Climbing steeply during the first mile, the trail levels out and hikers soon reach Rainbow Basin Divide and a side trail leading to Green Island Lake. The side trails to all of the area’s lakes are well marked with approximate distances. Hikers may opt to take all or none of these side trails; however, each lake is scenic and fishing opportunities are outstanding in each. Continuing on the main trail, reach Little Rainbow Lake after another 2.5 miles. After passing this lake, proceed 0.7 miles to the Rainbow Lakes Basin and Parks Creek Divide. Here, follow the steep, obvious trail leading to the right to reach the area’s most remote lake, Hideaway Lake, in 0.2 miles. Best months for hiking are late July through August.

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