Prescott Monstercross


At 7:30 am on Saturday, April 28, 2018

Meet just east of Prescott at the Frontier Village parking lot on State Route 69. Look for Harbor Freight Tool, and please park toward the west end of the shopping center well away from the stores. There are many more post-race food and drink options here than at the old meeting location!

There will be two route options again this year! GPX files are posted below. This free ride is limited to the first 74 people that sign up.

Shorter route (miniMonster): 59 miles with ~7,500′ of climbing. A lot has changed for 2016 as trails continue to be built all around Prescott. This loop is now essentially the Circle Trail with deviations into the Granite Dells and Granite Basin for good measure. Anticipated completion times for this loop will be 6-9 hours.

Longer route (megaMonster): 72 miles with ~12,000′ of climbing, showcasing the both variety and difficulty of the riding Prescott has to offer. While only 13 miles longer than the miniMonster, this route is MUCH, MUCH tougher. Do not underestimate it! This route will let you explore the western side of the Sierra Prieta and test your climbing legs, both on and off the bike. Anticipated completion times for most riders will be 9-12 hours.

Here are what the routes and profiles look like for 2017 (megaMonster in blue, ridden counterclockwise; the miniMonster does the eastern half of the blue loop and cuts south on the red line):


miniMonster profile:miniProfile

megaMonster profile:megaProfile


2017 GPX files (finalized as of April 6!):
(follow the link and then download the file)

miniMonster track

megaMonster track

Monstercross waypoints


In the past, we’ve had cues, but they are a lot of work to make. For this year, use the GPX files above and the City of Prescott trails map, available here or at any bike shop in town for a mere $1. If you don’t have a GPS, ride with someone who does.

Two notes for 2017 route changes:

(1) The route this year will skip passing through the Granite Dells proper. Private roads prevent us from sending a group through a few critical access areas, and a big event at the Watson Dells the same day will mean the Dells trails will be crawling with hikers. Keep your fingers crossed that there will be new options to connect through this area for 2018.

(2) Near the end of the loop, you will cross Senator Hwy after climbing Trail 396. From there, you continue climbing on the Ranch Trail 62 before turning left onto Boyscout Trail (a rather rowdy descent). Ranch Trail is currently being rerouted in the vicinity of the left turn onto Boyscout, so the track may not be entirely accurate. Just keep your eyes peeled for a wooden sign at an intersection with a faint left turn. That left turn is Boyscout.

Water: There is water available at a few places along the course, and usually, these are all turned on by the beginning of April:

(1) Mile 12: Gas station on your right as you cross Highway 89.

(2) Mile 18: At the ballfields. Aim for the main building with bathrooms just off-route. There’s a fountain outside.

(3) Mile 28: Spigot at Cayuse Trailhead. This was already on as of 3/30/17. Fill up here…it’s the last water on course unless you want to drop a mile or so back into town on White Spar Road to fill up.

(4) Mile 47 (mini)/59 (mega): Spigot in White Spar Campground next to the bathrooms (spigot is turned on as of 4/5/2017)

(5) For the megaMonster, there’s a small stream at mile 40. It should still be flowing a bit as of race day, but it’s not 100% guaranteed. A lot of riders have run out of water between here and White Spar CG in the past, so it is strongly recommended that you treat some water from this stream if you do not plan to carry a few liters of water from Cayuse! But there are cows about, so don’t just dunk your bottle and drink!


Use the comment section below to ask questions or make a comment about this race.  This ride is limited to 74 participants.


35 responses to “Prescott Monstercross

  1. Hey Kurt, April 15th is the same date as MBAA Prescott Punisher. I know several riders that would like to do the AES ride but are committed to the MBAA circuit b/c of sponsorship/team. Any chance we could move that to 8th or 22nd ?

  2. Thanks Chad. Now if only my wife will let me ride on Easter Sunday.

  3. Being in Easter makes it a no go for me. Hopefully it’ll be back to normal next year.

  4. Dang, I apparently don’t have holidays showing up on my calendar. Would Sunday April 2nd work any better for folks? There seem to be more events in April than normal to schedule around this year.

  5. April 2nd works for me, day after SBFL. Weekend of AES events !

  6. Is this event still on schedule?

  7. This event most certainly is still on the calendar. It’s going to stick to Easter Sunday. That works for most folks to whom I’ve talked.

  8. For those who don’t want to do Easter Sunday, I propose we do it Saturday April 15th. Same time, same place. ITT style. We will need to watch the MBAA site and avoid their race traffic.

  9. When is registration going to open up for 2017?

  10. I’m in!

  11. The GPX you have for the Mega Monster route is only a 3 miles section. do you have the full mega route?

  12. Make sure to use the registration above also if you are new to AES.

  13. Hey why not just hide eggs along the course and make it an Easter egg hunt.
    Raw eggs and the one who gets the most to finish unbroken wins. Dang now I have to race mbaa Saturday and PMC sunday

  14. I’m in.
    While it’s pretty early in the ride the Peavine Trailhead always has water. If the fountain’s off just use the sink in the restroom.

  15. Route updates for 2017 are posted!

  16. Wait, false alarm. I need to make one more change to the tracks…I’ll get this changed in the next few days.

  17. Ok…all is set to go! Tracks finalized, all water spigots along the route are flowing, and Easter is just around the corner.

  18. please remove me from the list. hope fully i can make the next aes ride

  19. Im in for a ITT around the first or second weekend of may if anyone is interested.

  20. Doing ITT on original date of 4/15. Mike Mills

  21. Raymond Hemmele

    A few of us rode most of the route yesterday, 4/9/2017 and confirmed that water is on at G-basin and at White Spar CG.

  22. Thanks for the update!

  23. Well im out. Don’t have that much time being Easter and all

  24. I’m out as well. Congrats to the people without kids or cold enough hearts to ditch them on Easter 🙂

  25. If anyone found a mini-wallet (just holds cards & a few bills) Id reading Mike Kunnecke can you let me know? Missing from jersey pocket, could be around the double track just before the 1st lakes where I remove a layer.

  26. Kurt, I sent my ITT info to Chad. Should I send it to you? Also, the results say 2016 instead of 2017.

  27. I heard through the grapvine that the official circle trail is going to be re routed around Turley and Boy Scout trails with a new trail. Does that mean this course will use that bypass for 2018 ?

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