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.

Race information

100 mi
100 Mile
100 km
100k
50 km
50k
Visit the organization's website for the most recent information.
Trail runs nearby

A trail race at Monte Sano State Park on August 1, 2026 offering 5 and 10 mile distances as the third event in the Wild Thangs Trail Series, with a cupless format, aid stations, and a 400-runner cap.

A trail race at Monte Sano State Park on August 22, 2026, offering a half marathon and 10K as race #4 of the Wild Thangs Trail Series with scenic views, aid stations, and a cupless policy.

A community fitness festival at Hays Farm Park in Huntsville on September 26, 2026. It features a certified half marathon, a timed 5K, a 1 mile community run, a short bike ride, pop up classes, vendors, and door prizes.

A Last Runner Standing event at Wade Mountain Preserve near Huntsville, AL, where runners repeat a 4.167 mile loop each hour until one runner completes more loops than the rest. The course uses trails by day and a road loop after dark.

Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.