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8.7 miles
Distance
966 ft
Climb
-955 ft
Descent
01:13:02
Avg time
10 ft
Altitude change
1,494 ft
Altitude min
1,660 ft
Altitude max
1,502 ft
Altitude start
1,512 ft
Altitude end
-23.5%
Grade max
27.9%
Grade min
3 miles
Distance climb
3 miles
Distance down
2 miles
Distance flat
01:13:02
Avg time
Main Course Details
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Activities
- Mountain Bike
- Hike
- Trail Running
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Riding AreaUnderdown Recreation Area
Merrill, Wisconsin -
Difficulty Rating
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Voted DifficultyBlue (1 vote)
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Local Popularity65 in Mountain Biking [+]
- 5 in Trail Running
- 5 in Hiking
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Global Ranking
-
Trail TypeSingletrack
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Bike TypeXC
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DirectionBoth DirectionsPopular Direction Shown
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Dogs AllowedYes
Main loop of Underdown system starting from the north trailhead. West side of the loop has more modern improvements to make the climbing a little less difficult and the descending a whole lot more fun. East side of loop is more traditional rugged trail with tougher climbing but still some fun downhills.
Local Trail Association
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Please consider joining or donating to the local trail association to supportDonate to earn trail karma!
trail development & maintenance.
Traditionally Indigenous Territory
Recent Activity on Trail
Past Week
- 0 rides
6 Months
- 2 rides
- 10 miles avg distance
All
- 22 rides
- Last: Jun 20, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
Main Course Trail Reports
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Trail Conditions
- Unknown
- Snow Groomed
- Snow Packed
- Snow Covered
- Snow Cover Partial
- Freeze/thaw Cycle
- Icy
- Prevalent Mud
- Wet
- Variable
- Ideal
- Dry
- Very Dry
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The colour categories are based on what percentage of riders are riding a trail in its intended direction.
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- > 6 months
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Directions to main-course-83834 trailhead
(45.329640, -89.588280)
Photos
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Videos
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Routes with this trail
9 miles • 943 ft • 1 • Loop •
Park at the Underdown Recreation Area off of Copper Lake Road. The route is gives you a taste of what the...
3 Reviews & Comments
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Nearby Trails
- Copper Lake Ave Trailhead & Campsite 354 ft
- Copper Lake Ave Trailhead & Campsite Access 404 ft
- Parking Area Access 833 ft
- Homestead Loop 1 mile
- Loop Road 1 mile
Underdown Recreation Area
- By feardabeast
TRAILFORKS & contributors - #83834 - 1,796 views
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Frequently Asked Questions About Main Course
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Where is Main Course located?
Main Course is located in Underdown Recreation Area, Merrill, Wisconsin, United States. It is part of the Underdown Recreation Area trail network. The trailhead is located at coordinates 45.32964, -89.58828.
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How hard is Main Course?
Main Course is rated as Blue difficulty.
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What is the elevation gain for Main Course?
Main Course has 966 ft of elevation gain. The trail has 955 ft of elevation descent. The elevation ranges from 1,494 ft to 1,660 ft.
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Is Main Course a point to point trail?
Main Course is not a point to point trail. The direction is Both Directions. The trail type is singletrack.
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