A unique, brutally tough ultramarathon across the cool high altitude pine forests of Mount Elden and the Dry Lake Hills above Flagstaff, Arizona.
The Flagstaff Endurance Runs are permitted by the Coconino National Forest and the City of Flagstaff.
Buffalo Park, 2400 North Gemini Drive, Flagstaff, AZ 86004
The Flagstaff Endurance Runs are held on over 25 miles of forest service trails and almost 7 miles of dirt forest service roads at an elevation between 7,000 and 9,000 feet. The course features five significant climbs on Upper Oldham (1850+ ft), Elden Lookout (2150+ ft), Lower Weatherford (1750+ ft), Friedlein Prairie Road (1100+ ft) and Heart Trail (1900+ ft). The combination of elevation gain/loss and Flagstaff’s high altitude makes the courses very difficult and NOT recommended for beginning trail runners.
The 2013 course will be reversed from 2012, meaning runners will now go up Elden Lookout Trail in the morning, then run down Brookbank/Little Gnarly, and finally take Little Elden later in the run for the final climb up the Heart Trail. This course will mean steeper climbs and more gradual descents and should make for a better flowing course.
There has been some confusion about the course route up near the Kachina Peaks Wilderness. This run DOES NOT go into Wilderness, which does not permit these types of organized events. The Coconino National Forest will not issue a permit for an organized race into Wilderness. Our course does not take the Kachina Trail, but the Kachina Cutoff Trail down to Friedlein Prairie Road which goes along the outside of the Wilderness boundary.
Forecast for Flagstaff, AZ
Friday, September 13
Packet Pickup 4:00-6:00PM
204 East Route 66
Flagstaff, AZ 86001
Saturday, September 14
Packet Pickup 5:00 – 6:45AM
Buffalo Park (Start Line)
Aid stations every 5-8 miles including water, electrolyte drink, sweet snacks, salty snacks, and fruit. Please plan to run with at least two bottles of water between aid stations.
Technical fabric color race shirt (Men’s & Women’s styles)
Scenic and challenging course on forest & mountain trails
Well stocked aid stations every 5-8 miles
Post race food (soup, fresh fruit) & socializing
Awards to top 3 male & female finishers at each distance.
All finishers will receive a finisher’s pint glass.
|Race||Until 7/21||Until 8/18||Until 9/10||Race Week|
Save $10 with our no-shirt option!
IMPORTANT: The Flagstaff Endurance Runs are intended for veteran trail runners. It is HIGHLY recommended that registrants have completed a trail 50k/50 mile prior to signing up for the corresponding race. The Flagstaff Endurance Runs feature rugged terrain, high elevation, steep climbs, and remote trails. Experience in all of these areas is critical to ensure you are prepared to complete this race safely. This event is not for first time 50k/50 mile runners, who have many other options available in Arizona and beyond. Excellent qualifying races are available at the Desert Runner Trail Series.
The race directors reserve the right to deny entry to runners that are not adequately qualified. If you have questions about your preparedness for this event, please contact us.
Online via Ultrasignup
Online registration closes on 9/10. Registration available after at packet pickup and race day. Shirts guaranteed at packet pickup if you register by 8/18, otherwise will be sold on race day if available.
Flagstaff 50 Jacket
We will have a very nice jacket available for purchase this year along with your registration. Direct link to purchase jacket
Final Cutoffs: 16 hours for the 50 mile, 15 hours for the 50 km.
Schultz Aid Out (Mile 12.8) – 10 AM
Kachina Aid Out (Mile 18.8) – 12 PM
Kachina Aid Back (Mile 25.4) – 2 PM
Schultz Aid Back (Mile 31.4) – 4 PM
Sunset Aid #2 (Mile 37) – 6 PM
Buffalo Park (Finish) – 10 PM
Schultz Aid Back (Mile 12.8) – 1 PM
Sunset Aid #2 (Mile 18.4) – 4 PM
Buffalo Park (Finish) – 10 PM
Course Detail (Maps)
50 Mile | GPX | KML
50 Kilometer | GPX | KML
*Note on GPX files: Right click and select “Save link as…” to download GPX files. GPX files may be opened by downloading the demo version of TopoFusion for free.
Here are step by step turn sheets with mileage and elevation for each course. You may want to print this and carry along with you on race day, especially if you are carrying a wrist mounted GPS watch.
50 Mile | Male – 8:41:03 – Michael Carson (’12) | Female – 10:33:51 – Katherine Metzger (’12)
50 Kilometer | Male – 5:12:32 – Zac Mendenhall (’12) | Female – 7:56:02 – Leslie Grabel (’12)
Race Day Schedule
Please arrive early to park, check in and warm up prior to your run. Restroom facilities are located at the start line (portable restrooms) near the entrance to Buffalo Park.
5:00 AM – Packet pickup / race day registration begin
5;43 AM – Begin Civil Twilight
6:00 AM – 50 Mile Start / all drop bags due at Buffalo Park (50 Mile & Km)
6:09 AM – Sunrise
7:00 AM – 50 Kilometer Start
6:34 PM – Sunset
7:00 PM – End Civil Twilight
10:00 PM – Final Cutoff (50 Mile & 50 Km)
Trail Running & Trash
Please respect the trails and the beauty of the forest by disposing of any trash at one of our aid stations.
All runners will be provided with a race bib that must be worn at all times during the race and be visible to race staff. You will be checked in and out of all aid stations on the course.
Drop bags are permitted at the Sunset, Schultz and Kachina Aid Stations. Please label your drop bag with the appropriate aid station name, your bib number, last name and place next to the aid station signs at the start (Buffalo Park) on race morning. Drop bags will be returned to Buffalo Park as each aid station closes down. ALL DROP BAGS (50 Mile & 50 Km runners) MUST BE AT BUFFALO PARK BY 6AM ON RACE DAY.
Crews will be allowed at the start/finish, Kachina & Shultz aid stations pending final permit approval. Please park in designated areas only and follow signs and directions from parking volunteers. Above all, do not block the public right of way on forest service roads.
Pacers will be allowed at the Kachina Aid Station for 50 mile runners (mile 32 on the course) and the Shultz Aid Station for 50 kilometer runners (mile 19).
Radio & communication support will be provided as a public service by Coconino Amateur Radio Club / Amateur Radio Emergency Service. Radio operators wearing orange vests will be located at each aid station along the courses as well as the Fort Valley and Elden checkpoints. They will be recording runner bib numbers as they pass through aid stations and be in contact with the start/finish line in Buffalo Park throughout the day. If there is a problem somewhere along the trail, please report to the next radio team.
Aid Station Helpers
Sign Up Here
Each course will be well marked with orange plastic ribbons with black polka dots. Trail junctions and turns will be well marked with colorful laminated signs. Please pay attention to these signs at each junction as there are multiple race distances and race courses! Course signs will correspond with your bib color (Yellow = 50 Mile, Blue = 50 Km). In addition, WRONG WAY flagging (blue & white checkerboard) and red signage will be posted to designate non-race trails. All runners are responsible for understanding the layout of the courses. Please familiarize yourself with the course maps on our website prior to race day and/or print a map to bring along with you.
Parking / Start Area
The start/finish line is located at Buffalo Park. Limited parking is available at the Buffalo Park trail head with additional parking TBA.
Camping is not allowed at Buffalo Park, but is allowed in parts of the Coconino National Forest.
Entering Flagstaff off the I-17 or I-40, take Milton Road north for 1.6 miles. Turn left on US-180/Humphreys Street and continue 0.6 miles. Turn right on Columbus Avenue and then take your first left onto Beaver Street. Go 0.3 miles past the Flagstaff Medical Center and take the second right onto Forest Avenue. After 0.9 miles, turn left onto Gemini Road and follow 0.6 miles to the entrance for Buffalo Park.
2400 N. Gemini Rd
Flagstaff, AZ 86004