Black Hills National Forest · South Dakota, Wyoming
Flume Loop a
1.5 mi of trail, end to end · native material surface · trail No. 50A · trail class 3 · typical grade 12-20% · tread 24-36 inches wide · hiking, bike · seasonal: hiking 04/16-10/31
Trailheads Spring Creek Trailhead Drive there · Spring Creek Trailhead Drive there
Spring Creek Trailhead the Forest Service's write-up
From Rapid City, travel about 14 miles South/west on Sheridan Lake Road. Spring Creek Trailhead is located .4 miles south of Sheridan Lake Road on National Forest System Road 390. This trailhead serves both the Centennial Trail and the Flume Trail (#50). It is located below Sheridan Lake along Spring Creek.
This trailhead on fs.usda.gov
Spring Creek Trailhead the Forest Service's write-up
From Rapid City, travel about 14 miles South/west on Sheridan Lake Road. Spring Creek Trailhead is located .4 miles south of Sheridan Lake Road on National Forest System Road 390. This trailhead serves both the Centennial Trail and the Flume Trail (#50). It is located below Sheridan Lake along Spring Creek.
This trailhead on fs.usda.gov
Every trail in Black Hills National Forest
About this trail's facts
The lines are the US Forest Service's National Forest System trails layer (public domain), read 2026-10-16 and simplified for the map; the length is the line's, end to end, and the class, surface, grade and tread width are the forest's own entries where it publishes them - a forest that publishes the centreline alone has none. The trailheads and the points along the way are the Service's recreation points, and the write-ups its own recarea text, unedited. Heights come from USGS 3DEP through Terrain Tiles on AWS (Mapzen/Tilezen), read along each line and rounded; a short trail on steep ground can be off by a few tens of feet. Closures change: check the forest's own site before you go.
