close
-
Layers w
- Weather Layers
- Pro
- Pro
- Pro
- Pro
- Pro
- Pro
- More Layers
- Pro
- Pro
- Pro
- Pro
-
Upgrade to
3D
Trail Conditions
- Unknown
- Snow Groomed
- Snow Packed
- Snow Covered
- Snow Cover Partial
- Freeze/thaw Cycle
- Icy
- Prevalent Mud
- Wet
- Variable
- Ideal
- Dry
- Very Dry
Trail Flow (Ridden Direction)
Trailforks scans users activity logs to determine the most popular direction each trail is ridden. A good flowing trail network will have most trails flowing in a single direction according to their intension.
The colour categories are based on what percentage of users are riding a trail in its intended direction.
The colour categories are based on what percentage of users are riding a trail in its intended direction.
- > 96%
- > 90%
- > 80%
- > 70%
- > 50%
- < 50%
- bi-directional trail
- no data
Trail Last Ridden
Trailforks scans activity logs to determine the last time a trail was ridden.
- < 2 days
- < 1 week
- < 2 weeks
- < 1 month
- < 6 months
- > 6 months
Trail Ridden Direction
The intended direction a trail should be ridden.
- Downhill Only
- Downhill Primary
- Both Directions
- Uphill Primary
- Uphill Only
- One Direction
Contribute Details
Colors indicate trail is missing specified detail.
- Description
- Photos
- Description & Photos
- Videos
Trail Popularity ?
Trailforks scans activity logs to determine which trails are ridden the most in the last 9 months.
Trails are compared with nearby trails in the same city region with a possible 25 colour shades.
Think of this as a heatmap, more activities = more kinetic energy = warmer colors.
- most popular
- popular
- less popular
- not popular
ATV/ORV/OHV Filter
Max Vehicle Width
inches
US Cell Coverage
Legend
Radar Time
Activity Recordings
Trailforks uses anonymized public activity data.
?
Activity Recordings
Trailforks uses anonymized public activity data.
?
Winter Trails
Warning
A routing network for winter maps does not exist. Selecting trails using the winter trails layer has been disabled.
Missing Trails
Most Popular
Least Popular
Trails are colored based on popularity. The more popular a trail is, the more red. Less popular trails trend towards green.
Jump Magnitude Heatmap
Heatmap of where users jump on trails. Zoom in to see individual jumps, click circles to view jump details.
BC Backroad Status
![map legend]()
Service Road Atlas is a free to use, community-driven service for viewing and creating reports on the numerous back-country service roads around B.C. and Alberta.
Slope Aspect
Direction the slope faces
Trails Deemphasized
Trails are shown in grey.
Only show trails with no bike usage.
Suggested Layers
Based on selected activity type
Save the current map location and zoom level as your default home location whenever this page is loaded.
SavePopular Trail Networks
view all areas »
No description for Custer County has been added yet!
Login or register to submit one.
Links
Activities Click to view
- Mountain Bike
196 trails
- E-Bike
93 trails
- Gravel Bike
79 trails
- Horse
112 trails
- Hike
242 trails
- Trail Running
242 trails
- Dirtbike/Moto
144 trails
- Observed Trials
3 trails
- ATV/ORV/OHV
53 trails
- Snowmobile
4 trails
- Snowshoe
15 trails
- Backcountry Ski
1 trails
- Nordic Ski
23 trails
Stats
- Avg Trail Rating
- Trails (view details)
- 312
- Trails Mountain Bike
- 196
- Trails E-Bike
- 93
- Trails Gravel Bike
- 79
- Trails Adaptive Bike
- 29
- Trails Winter Fat Bike
- 36
- Trails Horse
- 112
- Trails Hike
- 242
- Trails Trail Running
- 242
- Trails Dirtbike/Moto
- 144
- Trails Observed Trials
- 3
- Trails ATV/ORV/OHV
- 53
- Trails Snowmobile
- 4
- Trails Snowshoe
- 15
- Trails Downhill Ski
- 2
- Trails Backcountry Ski
- 1
- Trails Nordic Ski
- 23
- Total Distance
- 999 miles
- Total Descent
- 194,421 ft
- Total Vertical
- 7,799 ft
- Highest Trailhead
- 12,641 ft
- Reports
- 993
- Photos
- 695
- Completed Counter
- 12,661
Sub Regions
- Challis (79)
- Bayhorse Area (7)
- Challis Foothills (41)
- Lost River Range (4)
- Morgan Creek (22)
- Mackay (20)
- Copper Basin (17)
- Stanley (97)
- Alturas Lake (2)
- Bull Trout Lake (6)
- East of Stanley (17)
- North of Stanley (14)
- Red Fish Lake (6)
- West of Stanley (5)
- White Clouds (19)
- Yankee Fork (12)
Popular Custer County Mountain Biking Trails
• 100 ★ 4.7 • 7 miles • 530 ft • 1,167 •
William Creek is the downhill part of one of the most popular loops in the region: Fisher-Williams Loop. The Road is a fairly mellow road pedal up, with some steep and loose climbing near the end. Then it's down into for tons of buff...
• 100 ★ 4.0 • 1 mile • 38 ft • 907 •
Connector trail for the climb to the descent. Primarily through a burn area, so soil can be sandy and dry. The corners on the descent can get pretty blown out. Enjoy the views before the descent to the junction with . Note: Dirtbike...
• 95 ★ 4.0 • 4 miles • 190 ft • 417 •
Fast, smooth single track through the meadows and then through forest section and another meadow.
• 100 ★ 4.5 • 2 miles • 54 ft • 414 •
If descending, expect a rocky more technical ride until the sign. It can all be ridden but might be harder for beginners to descend.
• 100 ★ 3.4 • 3 miles • 225 ft • 394 •
Trail is a mix of single track and forest service roads. At the start of trail there are some rollers. Use caution at the start of the season as the trail crosses some meadows which turn into bogs.
• 95 ★ 4.0 • 6 miles • 1,576 ft • 214 •
Narrow canyon...with many wildflower meadows and a few old mining ruins along the way. The trail ends in a beautiful meadow with excellent views of the highest peak in the Sawtooths, Thompson Peak. Multiple creek crossings
• 85 ★ 4.4 • 7 miles • 112 ft • 174 •
Highly rated popular black diamond difficulty singletrack. This mountain bike primary trail can be used downhill primary. On average it takes 1 hour3 minutes to complete this trail.
• 90 ★ 3.0 • 1,112 ft • 2 ft • 153 •
Trail is a short gentle return from Dave's Wave back to the and to Upper Dump Road parking lot. Route can be ridden either direction, but preference is uphill.
Custer County Mountain Bike Routes
★ 4.4 • 19 miles • 4,081 ft • 3 • Loop •
32 km loop to the top and back down epic singletrack.
11 miles • 962 ft • 3 •
Added some details for those with adaptive equipment.
22 miles • 1,592 ft • 5 • Loop •
Loop around then an out and back to see BridalVeil Falls.
20 miles • 3,456 ft • 4 • Out & Back •
Start at Casino Creek Campground and climb Little Casino Creek trail to junction with Sunny Gulch. Turn...
20 miles • 4,336 ft • 5 •
The trail climbs gradually through some wet areas that have recently seen the installation of about 10...
Photos of Custer County Mountain Bike
Videos of Custer County Mountain Bike
Current Trail Warnings
| status | trail | date | condition | user | info |
|---|---|---|---|---|---|
| Galena Gulch White Clouds | Jul 26, 2026 @ 1:47pm (America/Boise) Jul 26, 2026 | Ideal | davidbien | So many large trees are down on Galena... |
Recent Trail Reports
| status | trail | date | condition | info | user |
|---|---|---|---|---|---|
| Joyride A Challis Foothills | Aug 14, 2026 @ 4:54pm (Pacific/Midway) 2 days | Ideal | swanybikes16 | ||
| Valley Challis Foothills | Aug 14, 2026 @ 4:54pm (Pacific/Midway) 2 days | Ideal | swanybikes16 | ||
| Mahogany Challis Foothills | Aug 14, 2026 @ 4:54pm (Pacific/Midway) 2 days | Ideal | swanybikes16 | ||
| Rattlesnake Alley Challis Foothills | Aug 14, 2026 @ 4:54pm (Pacific/Midway) 2 days | Ideal | swanybikes16 | ||
| B line (Joyride) Challis Foothills | Aug 14, 2026 @ 4:54pm (Pacific/Midway) 2 days | Ideal | swanybikes16 | ||
| Upper Buzztail Challis Foothills | Aug 14, 2026 @ 4:54pm (Pacific/Midway) 2 days | Ideal | swanybikes16 | ||
| Skull Valley Challis Foothills | Aug 14, 2026 @ 4:54pm (Pacific/Midway) 2 days | Dry | swanybikes16 | ||
| Playground Challis Foothills | Aug 14, 2026 @ 4:54pm (Pacific/Midway) 2 days | Ideal | swanybikes16 | ||
| Daves Wave Challis Foothills | Aug 13, 2026 @ 7:58am (America/Boise) Aug 13, 2026 | Dry | IDMTBCruiser | ||
| Foothills Trail Challis Foothills | Aug 13, 2026 @ 7:58am (America/Boise) Aug 13, 2026 | Dry | IDMTBCruiser |
National Scenic Trails & Official Routes
-
Idaho Centennial Trail
- Mountain Bike
- Hike
- Trail Running
Activity Feed
| username | action | type | title | date |
|---|---|---|---|---|
| swanybikes16 | add | photo | activity #101625043 | Aug 16, 2026 @ 8:13am 4 hours |
| Ccmadden1968 | wishlist | trail | activity #101532892 and 1 more | Aug 15, 2026 @ 8:05am 1 day |
| swanybikes16 | add | report | activity #101504954 and 7 more | Aug 14, 2026 @ 11:43pm 2 days |
| Et233003 | ridden | trail | activity #101494357 and 2 more | Aug 14, 2026 @ 6:00pm 2 days |
| chatownd | add | route | activity #101479852 and 1 more | Aug 14, 2026 @ 1:49pm 2 days |
Recent Comments
| username | type | title | comment | date |
|---|---|---|---|---|
| report | One patch of snow to cross, otherwise great | May 24, 2026 @ 1:34pm May 24, 2026 | ||
| trail | Combine with Blue Mountain Trail, Grand Prize,... | Nov 5, 2025 @ 11:03am Nov 5, 2025 | ||
| trail | Primary Moto trail. Open to Motos so keep that... | Sep 16, 2025 @ 11:33am Sep 16, 2025 | ||
| trail | I rode it today. Out and back. Wish it was 50... | Sep 1, 2025 @ 9:01pm Sep 1, 2025 | ||
| trail | I rode it today. All good. | Sep 1, 2025 @ 8:58pm Sep 1, 2025 |
Activity Type Stats
| activitytype | trails | distance | descent | descent distance | total vertical | rating | global rank | state rank | photos | reports | routes | activity logs |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mountain Bike | 196 | 683 miles | 134,495 ft | 310 miles | 5,105 ft | 639 | 957 | 9 | 10,101 | |||
| E-Bike | 93 | 323 miles | 64,108 ft | 152 miles | 4,872 ft | 12 | 762 | 3 | 1,036 | |||
| Gravel Bike | 79 | 225 miles | 33,885 ft | 85 miles | 5,213 ft | 80 | 41 | |||||
| Adaptive Bike | 29 | 86 miles | 8,510 ft | 25 miles | 3,560 ft | 60 | ||||||
| Winter Fat Bike | 36 | 92 miles | 17,060 ft | 40 miles | 4,042 ft | 3 | 295 | 5 | ||||
| Horse | 112 | 436 miles | 90,705 ft | 205 miles | 7,782 ft | 209 | 3 | 16 | ||||
| Hike | 242 | 870 miles | 166,788 ft | 380 miles | 7,799 ft | 25 | 971 | 8 | 4,725 | |||
| Trail Running | 242 | 869 miles | 165,994 ft | 379 miles | 7,799 ft | 2 | 968 | 5 | 797 | |||
| Dirtbike/Moto | 144 | 560 miles | 117,930 ft | 262 miles | 5,233 ft | 9 | 216 | 64 | ||||
| Observed Trials | 3 | 4 miles | 82 ft | 3,209 ft | 719 ft | 6 | 2 | |||||
| ATV/ORV/OHV | 53 | 161 miles | 28,150 ft | 62 miles | 5,213 ft | 5 | 93 | 11 | ||||
| Snowmobile | 4 | 13 miles | 108 ft | 4 miles | 1,798 ft | 16 | 3 | |||||
| Snowshoe | 15 | 23 miles | 1,037 ft | 8 miles | 1,804 ft | 16 | 70 | |||||
| Downhill Ski | 2 | 3,409 ft | 545 ft | 3,409 ft | 289 ft | 16 | 32 | |||||
| Backcountry Ski | 1 | 2 miles | 505 ft | 16 | 797 | |||||||
| Nordic Ski | 23 | 24 miles | 2,083 ft | 10 miles | 1,050 ft | 19 | 502 |
Frequently Asked Questions About Custer County
▼
What are the best places to ride in Custer County?
Custer County has 16 areas to explore for mountain biking. The top rated areas are:
▼
What are the highest rated mountain biking trails in Custer County?
The highest rated mountain biking trails in Custer County are:
- Williams Creek (4.5/5)
- Boundary Creek (4.4/5)
- Livingston Mill-Castle Divide (4.4/5)
- Rattlesnake Alley (4.4/5)
- Williams Creek (Upper) (4.3/5)
▼
What is the best time of the year to ride in Custer County?
Based on activity log data, the most popular months to ride in Custer County are:
- July (193 activities)
- August (165 activities)
- June (122 activities)
▼
What is the longest trail in Custer County?
The longest trail in Custer County is Kirkham Ridge at 23.2 miles. View all trails sorted by distance.
Activities
- Custer County Mountain Biking Trails
- Custer County E-Biking Trails
- Custer County Gravel Biking Trails
- Custer County Horseback Trails
- Custer County Hiking Trails
- Custer County Trail Running Trails
- Custer County Dirtbiking Trails
- Custer County ATVing/Offroading Trails
- Custer County Snowshoeing Trails
- Custer County Nordic Skiing Trails
Trails
Points of Interest
- By chuktA
TRAILFORKS NFTA NBBC & contributors - Admins: chuktA, IdahoEnduroSeries, macgyver96, CCTA, SAwSoc, S2C, WRTC
- #6738 - 3,484 views
- custer county activity log | embed map of Custer County mountain bike trails | custer county mountain biking points of interest
Downloading of trail gps tracks in kml & gpx formats is enabled for Custer County.
You must login to download files.