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Trail Conditions
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  • Freeze/thaw Cycle
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Trail Flow (Ridden Direction)
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The colour categories are based on what percentage of riders are riding a trail in its intended direction.
  • > 96%
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  • bi-directional trail
  • no data
Trail Last Ridden
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Trail Ridden Direction
The intended direction a trail should be ridden.
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Trail Popularity ?
Trailforks scans ridelogs 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 rides = more kinetic energy = warmer colors.
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ATV/ORV/OHV Filter
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Radar Time
x Activity Recordings
Trailforks users anonymized public ridelogs from the past 6 months.
  • mountain biking recent
  • mountain biking (>6 month)
  • hiking (1 year)
  • moto (1 year)
Activity Recordings
Trailforks users anonymized public skilogs from the past 12 months.
  • Downhill Ski
  • Backcountry Ski
  • Nordic Ski
Jump Magnitude Heatmap
Heatmap of where riders jump on trails. Zoom in to see individual jumps, click circles to view jump details.
Trails Deemphasized
Trails are shown in grey.
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      The 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.
      source: Lost Valley
      Primary Trail Type: Cross-Country
      Land Status: Conservation Reserve
      Weldon Spring Lewis & Clark Trailhead google parking directions
      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
      Region Details
      • 6
      • 1
      • 3

      Region Status
      Open as of Dec 31, 2021
      Local Trail Association

      Stats

      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
      90
      Photos
      15
      Ridden Counter
      1,517

      Photos of Lost Valley Mountain Bike

      8 |
      Dec 2, 2021 @ 7:57pm
      Dec 2, 2021
      32 |
      May 27, 2021 @ 11:00am
      May 27, 2021
      28 |
      May 27, 2021 @ 11:00am
      May 27, 2021
      42 |
      May 27, 2021 @ 11:00am
      May 27, 2021
      133 |
      Jul 8, 2019 @ 1:53pm
      Jul 8, 2019
      164 |
      Sep 20, 2018 @ 10:28pm
      Sep 20, 2018
      163 |
      Sep 15, 2018 @ 12:48pm
      Sep 15, 2018
      203 |
      Sep 14, 2017 @ 8:39pm
      Sep 14, 2017

      Videos of Lost Valley Mountain Bike

      youtuber Lost Valley Trail, St Charles, Missouri
      8:10 | 34 | Oct 29, 2021 , St. Charles

      Recent Trail Reports

      Activity Feed

      usernameactiontypetitledate
      user #1821240JccordeaddreportBusch Wildlife and 1 more
      Jan 3, 2022 @ 7:55pm
      Jan 3, 2022
      user #2917619dgklibrwishlisttrailLost Valley Trail
      Jan 1, 2022 @ 9:06am
      Jan 1, 2022
      user #2917619dgklibrriddentrailLost Valley Trail
      Jan 1, 2022 @ 9:06am
      Jan 1, 2022
      user #1821240JccordeaddreportLost Valley Trail
      Dec 27, 2021 @ 11:26am
      Dec 27, 2021
      user #2919985rabidroosterriddentrailLost Valley Trail
      Dec 4, 2021 @ 6:11pm
      Dec 4, 2021

      Recent Comments

      usernametypetitlecommentdate
      user #2374109JeremySchmidtytrailLost Valley ConnectorNatural spring located at ~0.6 mile mark. Look...
      Mar 12, 2021 @ 10:13am
      Mar 12, 2021
      user #2371314JSondermanreportLost Valley TrailTrail was in great shape today. Almost no mud...
      Aug 22, 2020 @ 11:29am
      Aug 22, 2020
      user #1575916tyjay1967reportLost Valley TrailGTG
      Oct 20, 2019 @ 11:01am
      Oct 20, 2019
      user #1796194malcolmz284771reportLost Valley TrailTrail head flooded. Drop in at Hamburg trail...
      May 26, 2019 @ 9:41am
      May 26, 2019
      user #1035606norcalspeeddemontrailLost Valley TrailOne of the most fun trails in STL area. I...
      Jun 13, 2017 @ 6:34am
      Jun 13, 2017

      Nearby Areas

      namedistance
      Broemmelsiek Park 23.9 km
      Matson Hill Park 2 14.8 km
      Klondike Park 6 38.1 km
      Quail Ridge Park 5 39.3 km
      Greensfelder County Park 12 311 km

      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike1031 miles1,647 ft11 miles292 ft
      #3,647#1,664158935,663
      Hike1440 miles2,743 ft15 miles292 ft
      #2,953#1,5099072
      Trail Running1440 miles2,743 ft15 miles292 ft
      #2,962#1,5089068
      • By pilznr GORC & contributors
      • Admins: GORC
      • #10407 - 4,082 views
      • lost valley activity log | embed map of Lost Valley mountain bike trails | lost valley mountain biking points of interest

      Downloading of trail gps tracks in kml & gpx formats is enabled for Lost Valley.
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