Blue Heron Hundreds
Mooresville, United States • 11 Apr 2026
Blue Heron Hundreds
The Blue Heron Hundreds are ultramarathon events held at Wheeler National Wildlife Refuge near Mooresville, Alabama, with the start/finish located at 4865 Arrowhead Landing Road. Distances offered are:
- 100 Mile
- 100K
- 50K
Runners follow a new 15.5 mile core loop on soft crushed gravel and dirt roads that passes notable birding and wildflower viewing areas in the refuge. The 100 mile distance repeats the loop six times with a final smaller seven mile loop, the 100K repeats the loop four times, and the 50K comprises two loops. The overall cutoff for all events is 31 hours.
Aid stations are positioned on the loop at miles 3.3, 6.2 (unmanned), 9.3, 12.2, and the start/finish at mile 15.5. Stations provide water, sports drinks, sodas, snacks, and at the start/finish station and the repeatedly visited aid station there will also be soup, potatoes, quesadillas, and coffee. Portable toilets are located at the start/finish area and at the unmanned aid station.
Pacer rules permit pacers for 100 mile runners starting around mile 47 and for 100K runners for the final loop; pacers must sign a waiver at the start/finish area. One drop bag is allowed for 100 mile and 100K runners and will be placed at specific loop aid stations. Crewing is restricted to the start/finish area. Each finisher receives a blue heron medal; 100 mile finishers also receive a custom belt buckle. A donation from the event supports the Wheeler Wildlife Refuge Association. Visit the organization's website for the most recent information.