3.4 mi from the trailheadOreville Campground
Campground

1.1 mi loop · 167 ft gain · 6,207 ft high point · Easy
SD · OpenStreetMap contributors
Sylvan Lake Trail loops 1.1 miles around Sylvan Lake, visiting a viewpoint destination with Flashers View nearby.
167 ft of gain, the approach both ways included.
What the trail reaches, measured from the start.
The hike from its start, the approach dashed. Drag with two fingers, or hold a key to zoom.
Trail data: USFS, NPS, © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP via Mapzen terrain tiles. Nearby reading: Wikipedia. Photos: Wikimedia Commons contributors, licensed as shown on each photo. Download the trail and feature data.
The closest places to sleep, measured from the trailhead.
Ranked the same way, within twenty-five miles.
11 mi from you19.6 mi out & back · 3,229 ft gain · Very hard
Black Hills National Forest · Camp 5 mi away
16 mi from you120.2 mi one way · 20,627 ft gain · Very hard
Wind Cave National Park · Camp 1 mi away
3 mi from you13.3 mi loop · 3,182 ft gain · Very hard
Black Hills National Forest · Camp 2 mi away
4 mi from you14.4 mi out & back · 2,337 ft gain · Very hard
Black Hills National Forest · Camp 2 mi away
2 mi from you3.4 mi out & back · 981 ft gain · Moderate
SD · Camp 3 mi away
11 mi from you21.6 mi loop · 3,353 ft gain · Very hard
Black Hills National Forest · Camp 5 mi away
Today: Mostly Cloudy · wind 3 mph S
Hikes that read like this one, wherever they are.

3.9 mi loop · 1,063 ft gain · Moderate
SD · Camp 3 mi away

19.8 mi out & back · 5,475 ft gain · Very hard
Custer National Forest · Camp 2 mi away
12.9 mi out & back · 1,643 ft gain · Hard
Bridger Wilderness · Camp 7 mi away

20.1 mi loop · 3,125 ft gain · Very hard
Black Hills National Forest · Camp 5 mi away