Point-to-point 100-mile course from Hyrum Gibbons/Mount Logan Park in Logan, Utah to Conestoga Ranch in Garden City, Utah (new for 2026; previously finished at Fish Haven, Idaho). About 65% singletrack, 34% dirt double-track and 1.5% pavement, with around 20,321 feet of climb. Cupless race: runners must carry their own hydration vessel.
Homepage stats: 100 Miles, 20,321' of climb, Max Elevation 8,865', Min Elevation 4,853', Avg Elevation 7,251'. The Information page separately describes the elevation range in rounder terms, 'around 5,000 feet to 9,200 feet' -- that appears to be an older, unrevised summary; the homepage stat block is more specific and is dated to the 2026 aid-station sheet, so it is treated as the primary figure here. No mandatory gear list: 'We will not require mandatory gear. Use your best judgement to bring enough to make sure you are safe/warm.'
A 100-mile point-to-point trail race through the Bear River Range, starting at Hyrum Gibbons/Mount Logan Park in Logan, Utah. For the 2026 edition the course was rerouted so it finishes at Conestoga Ranch in Garden City, Utah, and the entire route now lies within Utah; in earlier years it finished across the state line at Fish Haven, Idaho. About 20,321 feet of climbing, run in late September for the fall color and cooler weather, with a 36-hour time limit.
First run in 1999. The name honors Old Ephraim, a grizzly bear that once roamed the Wasatch-Cache and Caribou National Forests; his gravesite sits a few miles off the course, and the race's overall winners are crowned 'King and Queen of the BEAR 100' in his honor. It is the closing race of the informal Rocky Mountain Slam (with Hardrock, Leadville and Wasatch, among others, as the other qualifying races). The course has been modified twice for winter conditions since 1999, including a same-week reroute in 2006. For 2026 about 25% of the route was changed: the finish moved from Fish Haven, Idaho, to a new venue at Conestoga Ranch in Garden City, Utah, Logan Peak aid was moved and the early miles swapped from the South Syncline to the North Syncline trail, Franklin Basin aid moved to a larger roadside site, and Gibson Basin, Beaver Creek and Ranger Dip aid stations were replaced by new Peter Sinks and Burnt Fork aid stations plus a water stop between them.
| Mile | Station | Cutoff | Crew | Bag | Pacer | Med | To next |
|---|---|---|---|---|---|---|---|
| 0.00 |
Start (Hyrum Gibbons/Mount Logan Park)
4,852 ft
|
? | ● | · | · | ? | 10.00 |
| 10.00 |
Logan Peak
8,868 ft
|
10:00am | · | · | · | ? | 10.00 |
| 20.00 |
Leatham Hollow
5,140 ft
|
1:00pm | ● | ● | · | ? | 8.50 |
| 28.50 |
Upper Richards Hollow
7,490 ft
|
4:30pm | · | · | · | ? | 9.00 |
| 37.50 |
Right Hand Fork (RHF)
5,551 ft
|
7:30pm | ● | ● | ● | ? | 8.00 |
| 45.50 |
Temple Fork
5,837 ft
|
10:30pm | ● | ● | ● | ? | 6.50 |
| 52.00 |
Tony Grove
7,980 ft
|
1:00am | ● | ● | ● | ? | 10.00 |
| 62.00 |
Franklin Basin
6,717 ft
|
5:30am | ● | ● | ● | ? | 8.50 |
| 70.50 |
Logan River
7,280 ft
|
9:00am | · | · | · | ? | 6.00 |
| 76.50 |
Beaver Mountain
7,269 ft
|
11:00am | ● | · | ● | ? | 7.00 |
| 83.50 |
Peter Sinks
8,240 ft
|
1:30pm | · | ● | · | ? | 8.50 |
| 92.00 |
Burnt Fork
7,715 ft
|
4:15pm | ● | · | ● | ? | 8.00 |
| 100.00 |
Finish (Conestoga Ranch, Garden City)
5,969 ft
|
6:00pm | ● | ● | ● | ? | ? |
Directions to Leatham Hollow linked from bear100.com/crewdirections/.
bear100.comDirections to Right Hand Fork Trailhead from Logan, linked from bear100.com/crewdirections/. Runner will take ~3 hours at course-record pace from Leatham Hollow to RHF.
bear100.comDirections to Temple Fork linked from bear100.com/crewdirections/. Fastest runners take 4+ hours from Leatham Hollow to reach Temple Fork.
bear100.comDirections to Tony Grove linked from bear100.com/crewdirections/. ~6 miles of narrow paved road from the turnoff; aid is near the end of the road, before the campground/lake lot. Fastest runners take ~90 min from Temple Fork; most take 2+ hours.
Parking. Parking lot at the Tony Grove Highway 89 turnoff, and at Sink Hollow Trailhead, available for carpooling.
bear100.comFrom Tony Grove, back down the canyon to Highway 89, turn left (north), continue ~3 miles to Franklin Basin road, turn left.
bear100.comFrom Franklin Basin road, back to Logan Canyon Highway, turn left (east) ~3 miles to the Beaver Mountain turn, then ~1.5 miles up the paved road; turn right at the entrance, then right again into the new parking lot.
Parking. Ski Patrol lodge lot; be considerate of campers nearby.
bear100.comFrom Beaver Mountain, back down to Highway 89, turn left; ~6.5 miles to Sinks Road, turn right, follow ~1 mile to the aid station.
bear100.comFrom Burnt Fork, back to Highway 89, turn right, drive over the summit toward Bear Lake/Garden City; in Garden City turn left (north) on 300W; finish is on the left in 1/2 mile.
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