Trail
Mammoth — 100 mile solo
161 km
Start: 08:00 AM
River's Edge Ultra
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Trail in Canada, Spruce Grove
Distances
Trail
Magilla — 100 km solo
100 km
Start: 08:00 AM
Trail
Wallace — 80 km solo
80 km
Start: 08:00 AM
Trail
Muskeg — 50 km solo
50 km
Start: 09:00 AM
Trail
Koda — 21 km solo
21 km
Start: 10:00 AM
Running
Half Yak
12 km
Trail
Half Yak — 12 km solo
12 km
Start: 11:00 AM
25.00 EUR
Running
Muskrat
3 km
Trail
Muskrat — 3 km / 5 km kids
3 km
Start: 03:00 PM
10.00 EUR
About
A progressive mountain ultra series event through the North Saskatchewan River Valley featuring multiple loop options, creek crossings, beaver dams, and alpine ridge views. Net proceeds benefit the Olive Tree Projects.
Catering & aid stations
On-course verpflegung / aid stations: The Homestead Loop (19km) features an aid station halfway through where race director’s wife serves food straight from the kitchen. Additional unspecified on-course food/drink stations are located at each aid station along the course; no pacemaker lines.
Pacers
Pacers are permitted on the last two Homestead Loops and all Summit Loops for the 100 mile; on the last Homestead Loop and both Summit Loops for the 100 km; on the Summit Loop for the 80 km; no pacers for shorter distances.
Results
View official resultsTypical weather in Spruce Grove
Monthly averages based on historical data (2000–present).
Jan-6°-14°
↑ 08:45
↓ 16:46
Feb-5°-14°
↑ 07:56
↓ 17:45
Mar1°-9°
↑ 07:50
↓ 19:41
Apr9°-2°
↑ 06:35
↓ 20:37
May16°5°
↑ 05:35
↓ 21:31
Jun20°10°
↑ 05:06
↓ 22:08
Jul22°13°
↑ 05:27
↓ 21:58
Aug21°12°
↑ 06:17
↓ 21:05
Sep17°7°
↑ 07:11
↓ 19:52
Oct9°1°
↑ 08:04
↓ 18:39
Nov0°-8°
↑ 08:03
↓ 16:39
Dec-6°-14°
↑ 08:47
↓ 16:17
What's included in entry
- Race number
- Bib
- Timing (optional)
- T-shirt
- Race insurance
- Camping
Prices & signup
- Half Yak — 12 km solo25.00 EUR
- Muskrat — 3 km / 5 km kids10.00 EUR
FAQ
When and where is check-in / package pick-up?
Check-in and package pick-up is at the blue-top tent at the Start/Finish area. Specific times per distance are listed in the Race Agenda.
What is the registration deadline for refunds or changes?
Full refund or transfer if cancelled 30+ days before race day (less admin fees). 80% refund or transfer 7–30 days before. No refund or transfer less than 7 days prior to race day.
Is there age support or awards?
Handcrafted awards for top 3 male and top 3 female winners in age categories 16–39, 40–59, and 60+ for each distance. Medals for all finishers handed at the finish.
Last updated: Jun 6, 2026, 12:26:21 AM
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