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SaveThe name comes from the bootleggers who once made use of the area, getting lost among the numerous hollows. It was also near the site of an ammunition works and uranium processing plant which necessitated the cleanup that lies under the large mound on Hwy. 94. Now, the trail is a 10.5 mile loop with a mixture of double and singletrack punctuated with old homesteads, rock formations, natural springs, and a waterfall crossing. This is a very scenic and enjoyable mountain bike experience.
The gravel/doubletrack sections are fairly flat. The singletrack sections are super-flowy with punchy rock obstacles that will reward you with great views and better riding, the trail can get technical in spots and is now a much longer ride due to the increased singletrack. Be advised that this 10.5 mi loop will take some riders 2 hours to navigate due to the amount of singletrack and the difficulty of the rocky sections. There is a central fire road that cuts the loop almost in half which can be used to shorten or lengthen your ride.
Trail surface varies from dirt to rock throughout the trail, and drains very well, except in the flats of the lower creek bottom.
The trail is open until 10 pm, so it's a good place to ride at night.
The gravel/doubletrack sections are fairly flat. The singletrack sections are super-flowy with punchy rock obstacles that will reward you with great views and better riding, the trail can get technical in spots and is now a much longer ride due to the increased singletrack. Be advised that this 10.5 mi loop will take some riders 2 hours to navigate due to the amount of singletrack and the difficulty of the rocky sections. There is a central fire road that cuts the loop almost in half which can be used to shorten or lengthen your ride.
Trail surface varies from dirt to rock throughout the trail, and drains very well, except in the flats of the lower creek bottom.
The trail is open until 10 pm, so it's a good place to ride at night.
source: Lost Valley
Primary Trail Type: Cross-Country
Land Status: Conservation Reserve

Access Info:
From the Highway 40/94 interchange: Take Highway 94 South approximately 5 miles. The trailhead parking lot will be on your right hand side. It is not very well identified as "Lost Valley". A good landmark is the shooting range at the top of a hill on the right hand side of Hwy 94. When you descend that hill the parking lot will be on your right hand side, at the very bottom.
Links
Activities Click to view
- Mountain Bike
10 trails
- Hike
14 trails
- Trail Running
14 trails
Region Details
- 6
- 1
- 3
Region Status
Caution as of Jan 23, 2022Stats
- Avg Trail Rating
- Trails (view details)
- 14
- Trails Mountain Bike
- 10
- Trails Hike
- 14
- Trails Trail Running
- 14
- Total Distance
- 40 miles
- Total Descent
- 2,742 ft
- Total Vertical
- 293 ft
- Highest Trailhead
- 755 ft
- Reports
- 101
- Photos
- 24
- Ridden Counter
- 1,894
Popular Lost Valley Mountain Biking Trails
Lost Valley Mountain Bike Routes
title | rating | distance |
---|---|---|
St. Charles County Trifecta | 50 miles | |
Lost Valley Out and Back | 20 miles | |
Femme Osage Ridge Road/Gravel Route | 37 miles | |
16 mile Lost Valley All-Mountain Ride | popular ridelog | 16 miles |
13 mile Lost Valley Ride | popular ridelog | 13 miles |
23 mile Lost Valley All-Mountain Ride | popular ridelog | 23 miles |
21 mile Lost Valley All-Mountain Ride | popular ridelog | 21 miles |
13 mile Lost Valley Ride | popular ridelog | 13 miles |
13 mile Lost Valley All-Mountain Ride | popular ridelog | 13 miles |
11 mile Lost Valley Cross-country Ride | popular ridelog | 11 miles |
Photos of Lost Valley Mountain Bike
trail: Lost Valley Trail
36 |
Apr 23, 2022 @ 2:25pm
Apr 23, 2022
trail: Lost Valley Trail
32 |
Apr 23, 2022 @ 2:25pm
Apr 23, 2022
trail: Lost Valley Trail
29 |
Apr 23, 2022 @ 2:24pm
Apr 23, 2022
trail: Scenic Overlook Trail
11 |
Mar 15, 2022 @ 9:15am
Mar 15, 2022
trail: Scenic Overlook Trail
11 |
Mar 15, 2022 @ 9:15am
Mar 15, 2022
trail: Lost Valley Trail
47 |
Mar 3, 2022 @ 9:33am
Mar 3, 2022
trail: Lost Valley Trail
47 |
Dec 2, 2021 @ 7:57pm
Dec 2, 2021
trail: Lost Valley Trail
68 |
May 27, 2021 @ 11:00am
May 27, 2021Videos of Lost Valley Mountain Bike
youtuber

trail: Lost Valley Trail
8:10 |
410 |
Oct 29, 2021 , St. Charles
Recent Trail Reports
status | trail | date | condition | info | user |
---|---|---|---|---|---|
Lost Valley Trail | Feb 20, 2023 @ 9:00am Feb 20, 2023 | Variable | bobbydcg | ||
Lost Valley Cut-Off | Feb 20, 2023 @ 1:00am Feb 20, 2023 | Prevalent Mud | bobbydcg | ||
Monarch Chesterfield Levee (West) | Jan 1, 2023 @ 10:07am Jan 1, 2023 | Wet | cyclesteve99 | ||
Lost Valley Connector | Jul 12, 2022 @ 7:11am Jul 12, 2022 | Ideal | bj341 | ||
Hamburg Trail | May 14, 2022 @ 5:09am May 14, 2022 | Wet | CavRecon | ||
Hamburg Trail | Apr 12, 2022 @ 7:04am Apr 12, 2022 | Wet | bj341 | ||
Busch Wildlife | Dec 31, 2021 @ 10:17am Dec 31, 2021 | Ideal | Jccorde | ||
Hamburg Connector | Jul 20, 2021 @ 7:39am Jul 20, 2021 | Ideal | kirkaug | ||
Monarch Chesterfield Levee | Aug 28, 2020 @ 12:57pm Aug 28, 2020 | Ideal | JeremySchmidty | ||
Hamburg/Lost Valley Connector | Apr 23, 2020 @ 10:15am Apr 23, 2020 | Variable | Jimothy12 |
Activity Feed
username | action | type | title | date | |
---|---|---|---|---|---|
![]() | PaulkxeRqF | wishlist | route | St. Charles County Trifecta | Mar 12, 2023 @ 9:39am Mar 12, 2023 |
![]() | bobbydcg | add | report | Lost Valley Trail and 1 more | Feb 20, 2023 @ 1:07pm Feb 20, 2023 |
![]() | BeatenBottomBracket | add | report | Lost Valley Trail | Feb 5, 2023 @ 1:03pm Feb 5, 2023 |
![]() | cyclesteve99 | add | report | Monarch Chesterfield Levee (West) | Jan 2, 2023 @ 7:05pm Jan 2, 2023 |
![]() | RitchX63cKk | ridden | trail | Lost Valley Trail and 2 more | Dec 13, 2022 @ 2:45pm Dec 13, 2022 |
Recent Comments
username | type | title | comment | date | |
---|---|---|---|---|---|
![]() | trail | I rode CCW, but found myself doubling back for... | Apr 27, 2022 @ 8:19pm Apr 27, 2022 | ||
![]() | trail | Natural spring located at ~0.6 mile mark. Look... | Mar 12, 2021 @ 10:13am Mar 12, 2021 | ||
![]() | report | Trail was in great shape today. Almost no mud... | Aug 22, 2020 @ 11:29am Aug 22, 2020 | ||
![]() | report | GTG | Oct 20, 2019 @ 11:01am Oct 20, 2019 | ||
![]() | report | Trail head flooded. Drop in at Hamburg trail... | May 26, 2019 @ 9:41am May 26, 2019 |
Nearby Areas
name | distance | ||||
---|---|---|---|---|---|
Broemmelsiek Park | 2 | 3.9 km | |||
Matson Hill Park | 1 | 2 | 1 | 1 | 4.8 km |
Klondike Park | 2 | 6 | 3 | 8.1 km | |
Quail Ridge Park | 5 | 4 | 9.3 km | ||
Greensfelder County Park | 12 | 3 | 11 km |
Activity Type Stats
activitytype | trails | distance | descent | descent distance | total vertical | rating | global rank | state rank | photos | reports | routes | ridelogs |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mountain Bike | 10 | 31 miles | 1,647 ft | 11 miles | 292 ft | #2,826 | #1,430 | 23 | 100 | 3 | 7,302 | |
Hike | 14 | 40 miles | 2,743 ft | 15 miles | 292 ft | #2,222 | #1,290 | 1 | 101 | 90 | ||
Trail Running | 14 | 40 miles | 2,743 ft | 15 miles | 292 ft | #2,224 | #1,290 | 101 | 96 |
- By pilznr
GORC & contributors
- Admins: GORC
- #10407 - 5,215 views
- lost valley activity log | embed map of Lost Valley mountain bike trails | lost valley mountain biking points of interest
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