Aspen Asphyxiation

At 8:00am on Saturday, May 28, 2022

Start/End at Fort Tuthill, big lot next to the Bike Park.


This year we will be revisiting classic Elden trails,  repaired after last year’s monsoon damage and open for business. We will take the Loop Trail and AZT counterclockwise all the way to Little Bear for a scenic climb to Sunset. Then we will hit all the classics – Brookbank, Jedi, Little Gnarly, climb back to Sunset via climb #3 and descend down to AZT, Lower Moto, Chimney, up Dog Food and a new kick ass section of Schultz Creek. The route will return by FUTS and Loop Trail back to Fort Tuthill. There are gas stations for those needing water: 22 mile mark- Conoco station right before the tunnel under highway 89, 50 mile mark – Shell Station right up Highway 180 and 55 mile mark – Chevron off the old route 66.

***There are logging operations happening at the beginning of Climb #3 trail. At least two small sections of the trail are completely destroyed but the rest of the trail is in good condition. Stick to the GPX track to find the trail. Old Forest Road is dusty as hell. All of these issues will make this into a tough climb, AES style.


Start time and route are provided here and it is up to the participant to understand the route, and also have full responsibility for their navigation and well being. Since the events are self-supportive, it should be understood that these are for experienced adult backcountry cyclists only. If you question your ability to complete such an event, it is best that you consider another option before trying one of these. Also, maps, gps devices, water filtration units, and other backcountry tools are methods to ensure you complete the race. Therefore it is up to you – and you alone – to ensure your safety!!

GPX file:



7 responses to “Aspen Asphyxiation

  1. Is the plan to use the 2019 route, or will there be an update since the trail closures are a thing of the past?

  2. Working on an update…stay tuned.

  3. Hi. I’m out for Saturday.

  4. There is going to be a chill version of this route. Instead of turning left on Little Bear, you stay on AZT until Moto. Rest of the route is the same. That essentially will bypass 1400 feet of climbing (and descending) and save you 10 miles. You can decide to change to the chill route during the ride. You won’t get a DNF or time posted but you will have “chill option” next to your name

  5. After the race email your name, time and link to your online ride to arizonaenduranceseries(at)

  6. Looks like a windy one tomorrow!!!

Leave a question or comment.

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s