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Distance: 16 miles RT (we did ~12 miles due to the weather, and Chatchay was visibly close to hyperthermia).
Elevation gain: 3600 feet (we did ~2600', turned back a bit over 5000')
Driving distance: 110 miles round-trip
Direction: From the community of Zigzag on U.S. 26 (18 miles east of Sandy and 10 miles west of Government Camp), go north for 4 miles on the Lolo Pass Road (FSRD 18). Turn right on Road 1825 labeled "campgrounds and trailheads". Stay right on the bridge (at 0.6 miles) going over the Sandy River. Past McNeil Campground (1 mile from Lolo Pass Rd.). Stay left past the road to Riley Horse Camp (1.8 miles from Lolo Pass Rd.). Stay left past the road to Lost Creek Campground (2.2 miles from Lolo Pass Rd.). Go 0.3 more miles to the Ramona Falls Trailhead (2.4 miles from Lolo Pass Rd.)