Boulder Big 8
- Start at 4th and Mapleton in Boulder, Colorado
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- Ride North and go up and over Lee Hill Rd.
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- Go down Left Hand Canyon then left to Jamestown. Continue up past Jamestown to Sparn Road at the top of the long alpine-like climb
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- Back down then turn right up Left Hand Canyon, through Ward, to the Peak-to-Peak Highway
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- Back down, over Lee Hill Rd, to 4th and Mapleton
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- Go west up Sunshine Canyon to where the road turns to dirt
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- Back down then up Boulder Canyon to 4-Mile Canyon. Ride up this to the church in Salinas
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- Back down then up Boulder Canyon to Sugarloaf Road. Up this to the top, to the Switzerland Trail sign.
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- Back down, then up Magnolia Road to the top where it heads downhill and turns to dirt.
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- Back down and ride down Boulder Canyon into Boulder. Go South on 6th Street to Baseline then turn right and climb Super Flagstaff to the mailboxes at the very top.
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- Back down and finish at 4th and Mapleton - a 116.4 mi cycling route in Boulder, Colorado
Route Location
Start Lat/Lng: (40.020532360192696, -105.29150962829598)
City: Boulder
Country Name: the United States
Country Code: US
State Code: CO
State Name: Colorado
Postal Code:
Route Stats
Activity: Cycling
Distance: 116.4 mi
Max Elevation: 2844 meters
Elevation Gain / Total Ascent: 4938.7 meters
Data Source: MapMyRide
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