

Welcome to Northern Arizona Trail Runners Association (NATRA LLC). Founded in fall 2001, NATRA’s mission is to promote trail running in Northern Arizona to folks of all abilities. We organize group runs of 5 to 8 miles rotating a mix of over 75 different trails on Saturday mornings whether there is rain, snow or shine! In our 24 years we have never missed a run due to Mother Nature. We only skip Saturday runs if we are hosting, sponsoring, or providing volunteers at local races. Click on "NEXT RUN" to see our calendar. Dogs are always welcome, but you must run with them on a leash - it is the law! (See attorney James Griffith's paper). If you are new to running or a seasoned veteran, come join us off-road and discover the incredible forest trails of Northern Arizona.
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Join NATRA LLC here for a FREE lifetime membership, if you would like to be on our e-mail list. There is no fee to join the group, so bookmark NATRA to stay updated on the latest group run information! Happy Trails!
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Trail running safety tips from our dear friend Helen Galerakis who once held the Arizona Trail's fastest known supported women's time (17 days, 11 hrs, 3 min) from 2019-2024. Today Helen lives in Greece and organizes Cretan Wild and their group trail runs. If you are ever visiting Crete, be sure to join their group page and their Monday social runs at https://www.facebook.com/groups/creterunning
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Here are some general running safety suggestions
by Personal Injury Help (www.personalinjury-law.com). Another good source of information is found on the Diet Spotlight Web Site.
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27th Annual 10/10/26 Soulstice Mountain Trail Run Registration
(The 26th Soulstice Trail Run Race Recap​)
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NEW!!! 2026 Northern Arizona Racing Calendar
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NEW!!! Yan's NATRA YouTube Channel Listings
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JOIN NATRA's EMAIL LIST & FREE LIFETIME MEMBERSHIP
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​NEW!!! NATRA 2025 YEAR END REPORT
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​​High Country Running Columns Digital Archive
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New! 1988 Flagstaff Urban Trail System Plan
A historic perspective on the Sisu Runners, Flagstaff's first running club​​​​​​​
Looking for a group run in Flagstaff?
Monday evenings: Brew Pub Run Club
Monday evenings: Indigenous Running Circle of Flagstaff at Buffalo Park, 6 PM
Tuesday evenings: Team Run Flagstaff
Wednesday evenings (On pause in winter months): Peak Trail Runner
Thursdays 8 AM, Biff's Bagels: Flagstaff Bagel Run
Thursday evenings (March-October): Flagstaff Trail Divas
Thursday Evenings (Summers Only): Route 66 Running Club, 6:00 PM at Run Flagstaff Store
Fridays 4 PM, (May to September) Hoka NAZ Elite, Basha's Plaza, 1000 North Humphries Suite 200
Saturdays (all year): Northern Arizona Trail Runners Association (visit "next run" above).
Saturdays 9 AM: Coffee and Kilometers Club. Meet at Single Speed Coffee Roasters
Saturdays 10 AM: Karibu Run/Hike Club, Campbell Mesa Parking Lot
Sunday mornings (On pause in winter months): Flagstaff Frontrunners/Frontwalkers
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Flagstaff Trails Initiative Interactive Map
Dream Run Camp/Matt Fitzgerald interview with NATRA
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© Northern Arizona Trail Runner's Assocation | 2015
