Is crew access allowed on the 50 Miler course?

Yes, crew access is allowed on the 50 Miler course. 50 Mile crew is allowed at three locations: Bar M Aid Station (miles 4 and 12), Klonzo Aid Station (miles 16 and 45), Klondike Aid Station (miles 27 and 35). Klonzo is in Utahraptor State Park, entrance fee required. No crew or spectators elsewhere on course.

Are drop bags allowed on the 50 Miler course?

Yes, drop bags are allowed on the 50 Miler course. Drop bags go to Klonzo (miles 16 and 45), Klondike (miles 27 and 35) and the finish; collected at the start 5:45-6:15 AM. 12"x12"x12" or smaller, labelled with bib number or name, no valuables. Klondike bags return to the finish around 4:30 PM, Klonzo bags around 6:30 PM; held until Sunday 10 AM, then donated, never mailed.

Are pacers allowed on the 50 Miler course?

No, pacers are not allowed on the 50 Miler course.

Ultras · US · UT

Arches Ultra

50 Miler · 50 Mile

Registration open

Race dateJanuary 30, 2027

Start6:30am

Whenin 98 days

Who's going to Arches Ultra?

I'm running itPlan your weeks and your aid station times I'm crewingWhen to leave, where to park, at every stop I'm pacing or cheeringAsk your runner for their Out Here link

Free. You can start with nothing.

Official website Entry Aid stations Notify me if this race changes

Free, and always will be. NavRun makes money from race-day planning for runners who want it, never from this. Ultras change constantly, sometimes the morning of. Always confirm with the race director and the official website before you rely on anything here.

Distance The race

50 Mile

Climb The race

4,524 ft

Descent The race

4,524 ft

High point The race

5,135 ft

Time limit

not checked yet

Aid stations

Started

not checked yet

Finished

not checked yet

Finish rate

not checked yet

The course

Where it goes · 9 aid stations

Course line from the race's own GPX. Source file. Year of this file not known.

The race

What this one is

Arches Ultra is a winter trail race in Moab, Utah, on a lower-elevation course along the border of Arches National Park using the Bar M, Klonzo and Klondike trail systems. Distances are 9K, half marathon, 50K and 50 mile, all from the same start and finish line. Trails range from smooth to technical slickrock with some sand. It is the third event in the Triple Crown of Moab.

Getting in

Getting in Entry, lottery and what the race asks of you before race day.

Lottery: not checked yet

Lottery opens: not checked yet

Lottery draw: not checked yet

Field cap: not checked yet

Registration: UltraSignup ultrasignup.com

Qualifying: not checked yet

Minimum age: not checked yet

Transfers: No docs.google.com

Deferrals: Yes docs.google.com

Running, crewing, pacing or still deciding

How NavRun helps with Arches Ultra Four stations with a clock on each.

You are running it

You reach Klondike, mile 27, before its 12:45pm cutoff, and you already knew that this morning.

An arrival time for all 8 stations, worked out from your own training.

Start free →

You are deciding

You find out Arches Ultra is months of work away, not years, and you enter.

Put in a race you have already run. NavRun shows you where this one sits from where you are.

No account needed →

Crew access, pacers and drop bags

The rules that shape your day Anything marked "not checked yet" is a gap in what we hold, never a no from the race.

Crew allowed: Yes drive.google.com

Vehicles per runner: not checked yet

Pacers: No drive.google.com

Muling: not checked yet

Drop bags: Yes drive.google.com

Cupless: Yes madmooseevents.com

Course marking: Fully Marked drive.google.com

Night running: not checked yet

Dogs: not checked yet

Headphones: not checked yet

Crew rules: 50 Mile crew is allowed at three locations: Bar M Aid Station (miles 4 and 12), Klonzo Aid Station (miles 16 and 45), Klondike Aid Station (miles 27 and 35). Klonzo is in Utahraptor State Park, entrance fee required. No crew or spectators elsewhere on course. drive.google.com

Pacer rules: Pacers are not allowed for any distance. No pacing, including vehicles and bicycles. drive.google.com

Drop bag rules: Drop bags go to Klonzo (miles 16 and 45), Klondike (miles 27 and 35) and the finish; collected at the start 5:45-6:15 AM. 12"x12"x12" or smaller, labelled with bib number or name, no valuables. Klondike bags return to the finish around 4:30 PM, Klonzo bags around 6:30 PM; held until Sunday 10 AM, then donated, never mailed. drive.google.com

Cutoff philosophy: Intermediate cutoffs are firm and strictly enforced. Winter in the desert means limited daylight, cold temperatures and long nights, and route finding in the dark is dangerous. Missing an intermediate cutoff still lets a runner drop in distance to finish a shorter route. docs.google.com

Aid stations

Every stop, and what you get there ● yes ○ no ? nobody has checked – does not apply to this race

Mile	Station	Cutoff	Crew access	Bag	Pacer	Med	To next
4.00	Bar M NoneSignal wrong?	?	●	○	?	?	8.00
12.00	Bar M NoneSignal wrong?	?	●	○	?	?	4.00
16.00	Klonzo NoneSignal wrong?	?	●	●	?	●	6.00
22.00	Dalton NoneSignal wrong?	11:15am	○	○	?	?	5.00
27.00	Klondike NoneSignal wrong?	12:45pm	●	●	?	?	8.00
35.00	Klondike NoneSignal wrong?	3:00pm	●	●	?	?	5.00
40.00	Dalton NoneSignal wrong?	?	○	○	?	?	5.00
45.00	Klonzo NoneSignal wrong?	5:20pm	●	●	?	●	5.00
50.00	Finish Line NoneSignal wrong?	6:30pm	●	●	?	●	?

Same race, other lines

Other distances and other years

Other distances: 50K (32 miles)
1/2 Marathon (13 miles)
9K (5.5 miles)

What it looks like out there

Somebody has been out there with a camera the tables say the climb is long. these say what long feels like.

2 people have been out there with a camera or a microphone.

Social account

Mad Moose Events on Instagram

Social account

Mad Moose Events on Facebook

Social account

These are other people's work and we link straight to them. Watching costs nothing and needs no account. More of them: every race we hold, on film.

Add to this page

What you know every one of these is read by a person before it changes anything

Ran this race? Tell the next runner what you know.

Nobody sees it until we have read it. No account, no sign-in.

Which distance? Leave blank if it applies to the whole race.

Which stop? Leave blank if it is not about one particular stop.

Give it a short title: Optional. Something like “Cal Street, mile 62 to 78”.

What do you wish someone had told you? Write it the way you would say it to someone at the start line.

Were you there? Optional, and it decides nothing. It only tells the next runner where this is coming from.

What year? Optional.

Your email: Optional, and never shown on the page. Only so we can ask you a question about this note.

Website: Leave this field blank.

See something wrong or out of date? Suggest an edit.

This changes nothing on the page on its own. Somebody checks it against the race first.

Which detail? Optional. Filled in for you when you start from a specific line on the page.

What does the page say now? Copy it as it appears, so we can find it.

What should it say? The corrected value.

How do you know? Required. Where it came from: the race email, the runner manual, what you saw on the day.

A link that shows it: Optional.

Or a photo of it: Optional. A screenshot or a photo of the sign works.

Were you there? Optional, and it decides nothing.

What year? Optional.

Your email: Optional, only so we can come back to you about this correction.

Which distance? Leave blank if it is about the whole race.

Which stop? Leave blank if it is not about one particular stop.

Website: Leave this field blank.

Seen a course preview or a film of this one? Send it over.

Somebody watches it before it goes anywhere near this page. What we are after is footage of this course, on the ground. If it would be just as true of any other race, it is not this.

What does it show that the page cannot? Required. A line is plenty. Where the climbs are, what the footing does, what the last twenty miles look like.

Were you there? Optional, and it decides nothing.

What year? Optional.

Your email: Optional, and never shown on the page. Only so we can ask you a question about this one.

Where is it? A YouTube link, a race report, a photo gallery, whatever it is.

What kind of thing is it?

Who made it? Optional, and we credit them on the page.

Website: Leave this field blank.

Have the GPX? Send us the link.

We want the address of the file the race publishes, not the file. We download it from there so the page can say where the line came from.

Are you the race director? Get in touch and we'll make it right.

We read every one of these and we write back. Every fact here carries the source it came from, and the way a wrong one gets fixed is a person checking it against what you tell us.

Where this came from. Every fact on this page records its source and when we last checked it: 126 sources for this race. Hover a source link to read the sentence it came from.

39% of what we track for a course is filled in. The rest says "not checked yet" rather than guessing.

See something wrong or out of date? Suggest an edit
Ran this race? Tell the next runner what you know
Were you out there? Say which stops a text got out from
Got footage of this course? Send us the link
Are you the race director? Get in touch and we'll make it right.
Anything else: [email protected]

Ultras change. We will tell you when this one does.

Cutoffs move, races get postponed, lotteries open and close. We read the race's own sources and record where every fact came from. Put your email in and we will send you what changed, and where we read it.

No account, and nothing to cancel.

What happens to your email. Nothing else. I do not sell it, and I will not send you anything except this race changing. One click gets you out.

I keep this catalog because the information is scattered and hard to trust. Telling you when it moves is the same job.