Relay
42.2 km
Arvilla
Open entry

Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay

Official event website & entry ↗Data current as of 2026-07-06

Decision summary

Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay at a glance

Cut-off pace: 34:08/km
Evidence depth: 28 verified facts

Route details

Known course facts at a glance

Methodology →

Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay has known course details for its relay race. The summary below keeps the focus on what is confirmed for the course.

Official distance: 42.2 km
Terrain: Trail
Scenery: Parkland, Riverside, Waterfront, Forest, Countryside

Quick answers

What runners ask first

Where can I find the Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay route map?

Use the official course links on this page for the organiser route page, map PDF or route download.

Official course links

Where does the Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay route go?

The Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay route starts at Turtle River State Park, near Arvilla, North Dakota and finishes at Turtle River State Park, near Arvilla, North Dakota. Underfoot, expect trail. It passes Turtle River State Park and Turtle River. and the Imp single-lap 10K trail run.

What should runners know on race day for the Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay?

None - the lap course is run on natural-surface park trails with only about 100 yards of pavement; no closed public roads.

Race character

Scenery

Parkland
Riverside
Waterfront
Forest
Countryside

Atmosphere

Community
Festival
Wilderness

Terrain

Trail

Entry, logistics and records

Records and field

Field size: The race is limited to 100 total runners.

Entry requirements

Entry status: Open entry: The held registration model is open entry and this edition is not marked sold out.
Cut-off: 24:00:00

Race day logistics

Closed roads: None - the lap course is run on natural-surface park trails with only about 100 yards of pavement; no closed public roads.

Access and course status

Start: Turtle River State Park, near Arvilla, North Dakota
Finish: Turtle River State Park, near Arvilla, North Dakota

Course facts

Course type: Laps
Surface: Trail
Landmarks: Turtle River State Park, Turtle River
Notable features: Race formats: Zombie 6-Hour, 12-Hour and 24-Hour solo timed runs
Skeleton Army 12-Hour and 24-Hour team relays for teams of up to four people alternating laps
and the Imp single-lap 10K trail run
Start times: 24-Hour begins 8:00 PM the previous night running to 8:00 PM
12-Hour runs 8:00 AM to 8:00 PM
6-Hour runs 8:00 AM to 2:00 PM
the Imp 10K starts at 2:30 PM
Racers and teams are ranked first by the number of laps completed within the time limit and then by the time at which the last lap was completed. Around 50 miles is cited as a hardcore benchmark to shoot for
There is a warm place to chill out and get cozy between laps, with off-course entertainment including pumpkin carving, old horror movies and hanging by the fire
END-TRAILS forms part of the entry requirement for the Undead Hall of Fame: a racer must complete 100 miles in END-TOMBED and 50 miles on foot during END-TRAILS in the same weekend
The lap course has lots of windy single track, some fast and flat double track, lots of undulations (described as gentle for North Dakota) and about 100 yards of pavement
The Skeleton Army team format lets teams of up to four runners alternate laps over the 12-hour or 24-hour period

Loading race page

What runners ask first

Where can I find the Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay route map?

Use the official course links on this page for the organiser route page, map PDF or route download.

Official course links

Where does the Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay route go?

What should runners know on race day for the Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay?

None - the lap course is run on natural-surface park trails with only about 100 yards of pavement; no closed public roads.

Entry, logistics and records

Records and field

Field size: The race is limited to 100 total runners.

Entry requirements

Entry status: Open entry: The held registration model is open entry and this edition is not marked sold out.
Cut-off: 24:00:00

Race day logistics

Closed roads: None - the lap course is run on natural-surface park trails with only about 100 yards of pavement; no closed public roads.

Access and course status

Start: Turtle River State Park, near Arvilla, North Dakota
Finish: Turtle River State Park, near Arvilla, North Dakota

Course facts

Course type: Laps
Surface: Trail
Landmarks: Turtle River State Park, Turtle River
Notable features: Race formats: Zombie 6-Hour, 12-Hour and 24-Hour solo timed runs
Skeleton Army 12-Hour and 24-Hour team relays for teams of up to four people alternating laps
and the Imp single-lap 10K trail run
Start times: 24-Hour begins 8:00 PM the previous night running to 8:00 PM
12-Hour runs 8:00 AM to 8:00 PM
6-Hour runs 8:00 AM to 2:00 PM
the Imp 10K starts at 2:30 PM
Racers and teams are ranked first by the number of laps completed within the time limit and then by the time at which the last lap was completed. Around 50 miles is cited as a hardcore benchmark to shoot for
There is a warm place to chill out and get cozy between laps, with off-course entertainment including pumpkin carving, old horror movies and hanging by the fire
END-TRAILS forms part of the entry requirement for the Undead Hall of Fame: a racer must complete 100 miles in END-TOMBED and 50 miles on foot during END-TRAILS in the same weekend
The lap course has lots of windy single track, some fast and flat double track, lots of undulations (described as gentle for North Dakota) and about 100 yards of pavement
The Skeleton Army team format lets teams of up to four runners alternate laps over the 12-hour or 24-hour period

Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay

Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay at a glance

Known course facts at a glance

What runners ask first

Where can I find the Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay route map?

Where does the Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay route go?

What should runners know on race day for the Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay?

Race character

Scenery

Atmosphere

Terrain

Entry, logistics and records

Records and field

Entry requirements

Race day logistics

Access and course status

Course facts

How we calculated this

Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay

Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay at a glance

Known course facts at a glance

What runners ask first

Where can I find the Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay route map?

Where does the Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay route go?

What should runners know on race day for the Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay?

Race character

Scenery

Atmosphere

Terrain

Entry, logistics and records

Records and field

Entry requirements

Race day logistics

Access and course status

Course facts

How we calculated this

Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay at a glance

Known course facts at a glance

What runners ask first

Where can I find the Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay route map?

Where does the Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay route go?

What should runners know on race day for the Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay?

Race character

Scenery

Atmosphere

Terrain

Entry, logistics and records

Records and field

Entry requirements

Race day logistics

Access and course status

Course facts

How we calculated this

Related mapped-route collections

Relay route maps

Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay at a glance

Known course facts at a glance

What runners ask first

Where can I find the Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay route map?

Where does the Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay route go?

What should runners know on race day for the Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Relay?

Race character

Scenery

Atmosphere

Terrain

Entry, logistics and records

Records and field

Entry requirements

Race day logistics

Access and course status

Course facts

How we calculated this

Related mapped-route collections

Relay route maps