Dirty Bismark Loop 14 mi · dirt Coal Creek Trail, Superior to Erie 15 mi · gravel Rock Creek Trail 5.7 mi · gravel Lake Link Trail 6.0 mi · gravel Connector 0.2 mi · gravel Rock Creek to Lake Link Connector 0.9 mi · gravel McKay to Big Dry Creek Connector 3.9 mi · pavement Davidson Mesa 3.1 mi · gravel Eggleston Dr to Goodhue Blvd 0.4 mi · gravel W Coal Creek Dr to S 66th St 3.0 mi · gravel Gravel to Marshall 1.4 mi · gravel Gravel to 36 Underpass 0.6 mi · gravel Gravel Road 0.7 mi · gravel Buffalo Ranch Cross Country Course 2.0 mi · dirt Rocky Flats 6.8 mi · dirt Rocky Flats 3.0 mi · dirt Rocky Flats 2.6 mi · dirt big dry creek 1.0 mi · gravel Harper Lake 0.9 mi · gravel Lake Link Trail 17 mi · gravel April 8th 21 24 mi · gravel Wolff Street to West 75th Avenue 36 mi · gravel Davidson Mesa Trail 3.8 mi · gravel Waneka to NCAR and back 30 mi · gravel Standley Lake 7.1 mi · gravel Home to Standley 24 mi · gravel Farmers Highline - Broomfield Open Space 16 mi · gravel CNDR 59 mi · gravel CNDR Final Route 33 mi · gravel Boulder Gravel loop from home 68 mi · gravel Flagstaff Road from Home 23 mi · gravel Powerline Trail to West Cherry Street 69 mi · gravel to Dillon Road 12 mi · pavement City of Lafayette Trail 0.9 mi · gravel Coal Creek Trail 0.4 mi · gravel Gravel path 1.0 mi · gravel City of Lafayette Trail 0.0 mi · gravel South 104th Street 1.1 mi · gravel Mary Miller Trail 0.3 mi · gravel Coal Creek / Marshall / Baseline / Valmont 34 mi · gravel Louisville 9.4 mi · gravel Lafayette and Louisville Loop 1 13 mi · gravel Lafayette and Erie Loop 1 15 mi · gravel Out and back to diry Bismark 21 mi · gravel Louisville to S Boulder 7.6 mi · pavement County Road 15 3.0 mi · gravel