28th Annual Mickelson Trail Trek

Race Overview

The Fall Mickelson Trail Trek follows one of the most iconic rail-trails in the country: the George S. Mickelson Trail, winding 109 miles through the very heart of South Dakota’s Black Hills. Inducted into the National Rail-Trail Hall of Fame in 2010, the trail is built on a historic railroad grade and surfaced with smooth crushed limestone, it offers a front-row seat to landscapes you simply can’t see from the highway — quiet pine forests, granite outcroppings, wide open meadows, and hidden mountain valleys.

Autumn Experience

• Beautiful Scenery: In autumn, the trail comes alive with golden aspens, deep green pines, and crisp mountain air.
• Wildlife Activity: Wildlife is more active, the crowds are thinner, and every overlook feels like a private postcard.
• Peaceful Riding: One of the most beautiful times of year to ride.

Tunnels and Bridges

• Railroad Tunnels: Riders pass through four cool, echoing railroad tunnels.
• Trestle Bridges: Roll across more than 100 towering trestle bridges, many perched high above creeks, canyons, and forested ravines.
• Historical Journey: Each mile tells a story of the region’s mining past, railroad heritage, and wild beauty.

Route Challenge

• Gentle Grade: The trail’s gentle railroad grade makes most of the route comfortably rideable.
• Signature Challenge: The Black Hills still deliver their signature challenge, particularly the climb toward Dumont.
• Scenic Views: Riders are rewarded with sweeping views and a deep sense of accomplishment at the highest point on the trail.

Experience the Trail

This is more than a bike ride — it’s a chance to experience South Dakota’s most legendary trail at its most spectacular time of year.

Event Details

Date: 2026-09-18

Location: Mickelson Trail, Custer, SD

For more information and registration, visit the event page.