Trail Overview

Legion Lake Loop — Custer, South Dakota is a 4.0 miles-mile loop trail in Custer, SD, South Dakota, gaining 500 ft feet on a Dirt, root surface as a loop returning to the trailhead via a different path. Typical completion time: 2.5 hours.

Trail at a Glance

  • Distance: 4.0 miles miles · Loop
  • Elevation Gain: 500 ft feet
  • Difficulty: Moderate
  • Surface: Dirt, root
  • Season: May–October
  • Time: 2.5 hours
  • Fee: $20/vehicle (Custer SP)
  • Dogs: Yes (leash)
  • Permit: None

What to Expect

The trail begins in Custer, SD and showcases the natural character of South Dakota. The Dirt, root surface is manageable for most hikers, and the route is clearly marked throughout. At Moderate difficulty, this trail rewards the effort with scenery and experiences that define outdoor recreation in South Dakota.

The 500 ft-foot elevation change shapes the experience. The ascent builds steadily before the turnaround or loop completion returns you to the trailhead. Stay alert for wildlife and changing weather conditions common to South Dakota trails.

Planning Your Visit

Fee: $20/vehicle (Custer SP). Dogs not permitted. Permit required: None. Arrive early on weekends to secure parking. Bring at least 2 liters of water per person and energy-dense snacks. Layered clothing is essential for mountain and high-elevation environments.

What to Pack

  • Water: 2+ liters per person
  • Navigation: Download the GPX file before heading out
  • Sun protection: Sunscreen, hat, sunglasses
  • Layers: Wind layer and warm mid-layer
  • First aid: Basic kit with blister care

Getting There

The trailhead for Legion Lake Loop — Custer, South Dakota is located in Custer, SD, South Dakota. Confirm current conditions with the managing agency before your visit. Download the GPX file for navigation.

Leave No Trace

Stay on the designated trail, pack out all waste including food scraps and pet waste, keep dogs leashed, and respect wildlife by maintaining distance. Your care preserves these trails for future visitors.

Download the GPX File

Free GPX download available on this page. Load it into Garmin, Gaia GPS, AllTrails, or any compatible navigation app before leaving cell service.