close
Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Ideal
  • Dry
  • Very Dry
Trail Ridden Direction
Trailforks scans users ridelogs 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 riders are riding a trail in its intended direction.
  • > 96%
  • > 90%
  • > 80%
  • > 70%
  • > 50%
  • < 50%
Trail Last Ridden
Trailforks scans ridelogs 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
ContributeDetails
Colors indicate trail is missing specified detail.
  • Description
  • Photos
  • Description & Photos
  • Videos
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.
  • most popular
  • popular
  • less popular
  • not popular
ATV/ORV/OHV Filter
Max Vehicle Width
inches

LEGEND
Trail Difficulties
  • Access Road/Trail
  • White
  • Green
  • Blue
  • Black
  • Double Black Diamond

Trail Report Status
  • Clear / Green
  • Minor Issue / Yellow
  • Significant Issue / Amber
  • Closed

  • Land Owner Overlay
  • Wilderness (typically no bikes in USA)
  • BLM (public)
  • USFS (Wildlife sanctuaries darker than usfs)
  • State land
  • Indigenous
  • Military
Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Ideal
  • Dry
  • Very Dry
  • Map Markers
  • trail Trail Head
  • photo Photo
  • place Directory Listing
  • region Riding Area
  • TTF TTF
  • Parking Parking
  • Viewpoint Viewpoint
  • Information Information
  • Warning Warning
  • Directions Directions
  • Sight Sight
  • Restrooms Restrooms
  • eBike Charging Point eBike Charging Point
  • Water Fountain/Source Water Fountain/Source
  • Gate Gate
  • Trail Sign Trail Sign
  • Table or Bench Table or Bench
  • Ladder Ladder
  • Stairs Stairs
  • Bridge Bridge
  • Boardwalk Boardwalk
  • Camping Camping
  • Cabin Cabin
  • Lodge Lodge
  • Bear Cache Bear Cache
  • Dock Dock
  • Ranger Station Ranger Station
  • Summit Summit
  • Other Other
      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
      August A. Busch Memorial Wildlife & Nature Conservation Park 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
      Region Details
      • 6
      • 1
      • 2

      Region Status
      Open as of Sep 14, 2020
      Local Trail Association

      Stats

      Avg Trail Rating
      Trails (view details)
      13
      Trails Mountain Bike
      9
      Trails Hike
      13
      Trails Trail Running
      13
      Total Distance
      39 miles
      Total Descent
      3,655 ft
      Total Vertical
      309 ft
      Highest Trailhead
      771 ft
      Reports
      69
      Photos
      9
      Ridden Counter
      1,041

      Recent Ridelog Activity in Region

      Today
      • 9 rides
      • 12 miles avg distance
      Yesterday
      • 14 rides
      • 19 miles avg distance
      Past Week
      • 51 rides
      • 18 miles avg distance

      Photos of Lost Valley Mountain Bike

      70 |
      Jul 8, 2019 @ 1:53pm
      Jul 8, 2019
      96 |
      Sep 20, 2018 @ 10:28pm
      Sep 20, 2018
      98 |
      Sep 15, 2018 @ 12:48pm
      Sep 15, 2018
      133 |
      Sep 14, 2017 @ 8:39pm
      Sep 14, 2017

      Recent Trail Reports

      Activity Feed

      usernameactiontypetitledate
      user #1605260mbdierkerwishlisttrailLost Valley Trail
      Nov 24, 2020 @ 2:12pm
      Nov 24, 2020
      user #2417799RjwisewishlisttrailLost Valley Trail
      Nov 19, 2020 @ 6:22pm
      Nov 19, 2020
      user #2209096JamesEdward1024wishlisttrailLost Valley Trail
      Nov 17, 2020 @ 9:53pm
      Nov 17, 2020
      user #2043587Jimothy12votetrailLost Valley Cut-Off and 1 more
      Nov 17, 2020 @ 8:43am
      Nov 17, 2020
      user #1753674pomeroyjriddentrailLost Valley Trail
      Nov 9, 2020 @ 8:17am
      Nov 9, 2020

      Recent Comments

      usernametypetitlecommentdate
      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
      • By pilznrTrailforks Pro Subscriber GORC & contributors
      • Admins: GORC
      • #10407 - 3,022 views
      • lost valley activity log | embed map of Lost Valley mountain bike trails | lost valley mountain biking points of interest
      • subscribe print map 3d map donate to earn trail karma!

      Downloading of trail gps tracks in kml & gpx formats is enabled for Lost Valley.
      You must login to download files.