UPDATE: This year’s race has been cancelled!
In order to ensure a healthy safe and fun event for all involved, the 2021 race for late January and early February has been cancelled.
We look forward to being back with racers and volunteers in 2022 for a great race and community experience!
EXPERIENCE A ONCE IN A LIFETIME ADVENTURE
Help us raise funds to support this amazing race in the heart of Valley County, Idaho.
Only one Ultimate Alaska Experience left.
Check back soon for details or to purchase the Ultimate Alaska Experience at this year’s Iditarod!
VOLUNTEER
Registration will be opening in late 2021 for the 2022 racing season! Please check back.
We would love your help!
AWARDS BANQUET 2021
New details will be posted for 2022 festivities.
WELCOME
McCall – New Meadows – Donnelly – Cascade – Smith’s Ferry
Idaho Sled Dog Challenge
The Running of the Idaho Sled Dog Challenge (ISDC) includes three concurrent races. The premier event is the 300 mile race, an Iditarod and Yukon Quest qualifier. Many participants in this race are also competing in the Triple Crown event launched in 2019 known as the Rocky Mountain Triple Crown. Participating races include ISDC, Oregon’s Eagle Cap Extreme and Montana’s Race To The Sky.
New for the 2021 race will be all races started at Lake Cascade. In addition to our 300 mile featured race are a 100 mile race and a Junior race for participants aged 14-17 years old.
SCHEDULE OF EVENTS: JAN 31- FEB 04, 2021
JAN 31
CANCELLED
11:00 AM to 3:00 PM Vet Checks
Ridley’s Parking Lot east of Idaho First Bank
495 Deinhard Lane, McCall, ID
Arrive no later than noon.
4:00 PM Musher Meeting & 5:30 PM Potluck
(Closed to the Public)
Idaho First Bank building, lower level,
475 Deinhard Lane, McCall, ID
Musher attendance required.
6:00 PM Meet the Mushers: Open to the Public
Idaho First Bank building, Lower Level,
475 Deinhard Lane, McCall, ID
Bib numbers will be drawn at that time.
Musher attendance required.
FEB 01
CANCELLED
11 AM 300 Mile Start
11:30 AM Junior Start
12:00 PM 100 Mile Start
Lake Cascade State Park Boat Ramp
Van Wyck State Park
117 Lakeshore Dr., Cascade, ID
Mushers must arrive by 8:00 am
Junior Race Finish
Platt Checkpoint
Donnelly, ID
FEB 02
CANCELLED
100 Mile Race Finish
The Little Ski Hill
3635 Hwy 55, McCall, ID
FEB 03
CANCELLED
6 PM 100 Mile & Junior Mushers “Meet the Mushers Program & Pot Luck”
Location in Cascade, ID TBA
300 Mile Race Finish (continued on Feb 04)
Lake Cascade State Park Boat Ramp
Van Wyck State Park
117 Lakeshore Dr., Cascade, ID
FEB 04
CANCELLED
300 Mile Race Finish (continued from Feb 03)
Lake Cascade State Park Boat Ramp
Van Wyck State Park
117 Lakeshore Dr., Cascade, ID
4:30 PM – Musher Meeting
(closed to the public)
Idaho First Bank, Lower Level
475 Deinhard Lane, McCall, ID
6:00 PM – Awards Banquet
North Fork Lodge
200 Scott St., McCall, ID
become a sponsor. find out how.
SPONSORSHIPCHECKPOINTS
There are four road accessible checkpoints plus one new remote checkpoint in the 2022 race.
VIEWDOWNLOAD
2022 Trail Maps available late 2021
To follow along with the race download this printable PDF with 8 pages of maps showing different legs for both the 100 and 300 mile races.
* Maps may be updated prior to race starts. Mushers use maps provided in your official race packets at check in.
New routes for 2022 Coming Soon!



300 MILE RACE START
COMING SOON
300 MILE RACE: On the trail
VIEW
300 MILE RACE FINISH
VIEW
100 MILE RACE: On the trail
VIEW
100 MILE RACE START
VIEW
100 MILE RACE FINISH
COMING SOON
CHECKPOINTS
COMING SOON
BANQUET
COMING SOON
JUNIOR RACE
COMING SOON2019 Race Photos
VIEWLatest News
Check back here for updates and stories.
OFFICIAL TIME SHEETS 2020
Thanks to all the mushers and dog teams participating in the Idaho Sled Dog Challenge for 2020. Attached are the official time sheets for each race. 300 MILE RACE 100[…]
Read moreRocky Mountain Triple Crown
The Eagle Cap Extreme, Idaho Sled Dog Challenge, and Montana’s Race to the Sky sled dog races are excited to partner together for the Rocky Mountain Triple Crown!
Those mushers and their four-legged athletes who run in the same category in all three races are eligible to compete for the Rocky Mountain Triple Crown title. The classes of race include the following:
Read moreCHECKPOINT DIRECTIONS & LOCAL RESOURCE GUIDE
Be sure to check out our new local resource guide created by the Cascade Checkpoint’s fearless leader, Kellee Hadley! Download it and carry with you as you drive from one[…]
Read moreGET IN TOUCH
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