Located in the remote, wild northeastern Upper Peninsula of Michigan, the Two Hearted River captured the imagination of Ernest Hemingway in his novel "The Big Two Hearted River." In addition to world class trout fishing this region features one of the most remarkable stretches of shoreline in the entire Lake Superior basin. Runners in the 50K and Marathon will experience this rugged coastline first hand via single track on high bluffs and more intimate shoreline forests. In addition, the race course winds inland along the shores of Culhane Lake and the Little Two Hearted River. The course is 80% single track and 20% dirt forest road or two track. This course has the capacity to transform the way you see nature and the world.  All races finish at the Upper Tahquamenon Falls, second highest east of the Mississippi. Camp 33 Brew Pub is located 200 meters from the finish.

Upcoming Races

Jun 26 2021
50 KM
The 50K route is a stunning tour through the rugged and remote Two Hearted River wilderness. The race travels on dirt forest roads for 3.5 miles before arriving at the first aid station at the Reed & Green Campground. The next 6 miles takes runners on spectacular section of Lake Superior coastline, with some ascents of high ridges with far reaching views out into the world’s largest freshwater lake. The next aid station is located at the mouth of the Two Hearted River. Runners cross a cabled foot bridge over the river before reaching the aid station. The course then continues along Lake Superior before heading inland through a spectacular region scorched by fire 12 years ago that is now lush and green with ferns and shoulder high trees. Runners then enter a pine forest before reaching aid station #3 at the Culhane Lake Campground. Runners follow the southern shoreline of the lake before heading southwest. This forested section is the most remote and wild on the entire course. The next aid station is located when the trail crosses Country Road 414 east of Pike Lake. The route continues to two tracks and lovely single track along the Little Two Hearted River until runners reach Country Road 500. Here runners reach their last aid station before heading toward Betsy Lake. The trail here is single track along several ridges overlooking tamarack bogs. The route then joins the Giant Pines Trail, where runners will encounter 300-400 year old white pines. The course finishes near the Upper Tahquamenon Falls, approximately 200 meters from the Camp 33 Brew Pub.
1,290 855 ft.
Point-to-Point Course
5 Aid Stations
7 :30 Cutoff
2 Elevation Rating
Rolling, ~2500 feet in 50 miles
3 Surface Rating
Some rocks, root, and/or ruts


50 KM View course top times

Date Finishers Top Result Top Result (F)
06/20/20 Race Cancelled
06/22/19 47 4:29:58 5:45:24
06/23/18 42 4:41:06 5:00:11
06/24/17 51 4:18:09 5:42:56
06/25/16 28 4:04:55 5:11:29
06/27/15 57 3:41:56 4:26:09
We try to keep the most accurate information about this race, but changes do happen. Always visit the official race website for the most up to date information. If you see an error, please let us know

More events by Great Lakes Endurance


  • Jun 13, 2021
  • Lloyd Harbor, NY
50 KM