50 miles
7,008 ft
-7,006 ft
812 ft
High Point

Also known as the St. Charles County Epic, this ride uses the Katy and Hamburg Trails to access 3 popular area trail systems- Lost Valley, Matson Hill, and Klondike Park.
Beginning at the Weldon Spring Site, or "The Mound" the ride starts by taking the Hamburg Trail to Lost Valley and riding a part of that trail in whichever direction you prefer. Crossing over Hwy 94 to the Katy, one rides it all the way to Klondike, and then ride the trails there.
Jumping back on the Katy and heading back the way you came, you reach Matson Hill Rd. at the Defiance trailhead. Head up the steep climb to the pavement, and east until you come to Matson Hill Park. Ride the trails there, and head back down to the Katy either the way you came on the gravel road, or down the pavement to Defiance.
Once on the Katy, ride it back to the Katy/Hamburg junction, cross Hwy 94 again, and finish whatever section of Lost Valley you didn't ride the first time. Then it's up the Hamburg Connector to the Hamburg, and return to where you parked at The Mound.

Local Trail Association
Gateway Off-Road Cyclists (gorctrails.com)
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Trails in Route


  • Riding area
  • AKA
    St. Charles County Epic
  • Difficulty rating
    Black Diamond
  • Route Type
    Out & Back
  • Bike type
  • Direction
    Both Directions
  • Physical rating
  • Ridelogs
More Stats for St. Charles County Trifecta mountain bike route
  • Altitude min
    468 ft
  • Altitude start
    657 ft
  • Altitude end
    659 ft
  • Grade
  • Grade max
  • Grade min
  • Distance climb
    23 miles
  • Distance down
    23 miles
  • Distance flat
    4 miles
no votes yet
Layers winter
Trail Style
  • ?
Activity Type
Trail Conditions
  • Unknown
  • Snow Packed
  • Snow Covered
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Dry
  • Very Dry
Trail transparency
Hays Loop Descent
Hays Loop Descent
1:22 | 59 | comments: 0 | favs:
Nov 20, 2016
Down the hill and through the woods

Recent Trail Reports Along Route

Matson Hill Loop
Sep 18, 2018 @ 10:34am
Sep 18, 2018
Although it has been quite hot out, the leaves are beginning to fall. There were portions of the trail where it was hard to pick a line due to so many leaves on the ground.
Katy (Weldon Spring - Augusta)
Sep 3, 2018 @ 11:58am
Sep 3, 2018
Hamburg Connector
Aug 25, 2018 @ 4:32pm
Aug 25, 2018
Lost Valley Trail
Aug 10, 2018 @ 6:06am
Aug 10, 2018
Dry to dusty... enjoy!
Oxen Mill
Jul 2, 2018 @ 12:26pm
Jul 2, 2018
Riding great. One of the few trails in the area that didn’t have a downed tree or two.
more reports »
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