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+ 42

St. Vrain + Peak to Peak Loop

Cycling Route

Details
65.62 mi
5,575 ft
Considered by many to be one of the best rides in the country, the St. Vrain + Peak to Peak Loop (also known as the Ward-Lyons Loop) takes cyclists from Boulder all the way up to the oft snowy Peak to Peak. From Boulder, riders are able to warm up along Hwy 36 while heading north towards Lyons before the hard climbing begins. Although this loop can be ridden in either direction, most cyclists prefer turning left onto CO 7 from Lyons. A lengthy and visually striking climb, cyclists will admire the granite and red sandstone walls that surround them. Stop off at the Raymond General Store for a drink before reaching the renowned Peak to Peak Highway. You’ll continue climbing rollers all the way until you arrive at the town of Ward, where there is another opportunity to stop for snacks and refreshments. At this point, riders can finally take a deep breath; the climbing is over. All that’s left is a long and flowing descent down Lefthand Canyon and an easy stretch back to downtown Boulder.

* Starting from Boxcar Coffee Roasters
Created By
Kate G

Route and Elevation

Segments

NameDistanceElev. Diff.Avg. Grade
High Sprint0.14 mi30 ft3.5%
13th Street - Casey0.13 mi-30 ft-4.5%
Kingwood Pl Climb0.45 mi295 ft12.4%
Amante to LeftHand5.35 mi118 ft0.2%
Amante to 66 Lyons11.25 mi-417 ft-0.4%
North Boulder to Lyons12.24 mi-420 ft-0.3%
Broadway & 36 to 36 & Neva2.44 mi-85 ft-0.3%
36 to St. Vrain7.88 mi217 ft0.1%
NoBo to GreenBriar4.63 mi118 ft0.1%
The Cuore Kilometer0.66 mi-56 ft-1.0%
neva rd to hygiene rd6.51 mi-236 ft-0.2%
Haystack north segment2.42 mi102 ft0.7%
US36 - Lefthand to Lyons5.92 mi-423 ft-1.0%
Speed Bump1.29 mi56 ft0.5%
36 & Nelson Rd to 36 & Hygiene3.60 mi-259 ft-1.1%
Hwy 36 from Hygiene to Hwy 661.56 mi-174 ft-2.0%
Entering Lyons NoBikeLane Sprint0.19 mi3 ft0.4%
Lyons to Raymond Turn11.55 mi2,028 ft3.3%
Lyons through Riverside Drive15.11 mi2,546 ft3.2%
Lyons to Riverside Drive11.22 mi2,021 ft3.4%
Apple Valley to Raymond12.02 mi2,231 ft3.5%
End of rollers to Raymond turn9.00 mi1,814 ft3.8%
S St Vrain Dr Climb0.59 mi289 ft9.3%
Alfenas full climb4.62 mi1,030 ft4.2%
St. Vrain2.10 mi817 ft7.1%
S St Vrain Dr Climb0.84 mi233 ft5.0%
S St Vrain Dr Climb0.70 mi213 ft5.6%
S St Vrain Dr Climb0.43 mi282 ft12.3%
South Saint Vrain Drive Climb0.35 mi272 ft14.8%
S St Vrain Dr Climb1.07 mi282 ft5.0%
S St Vrain Dr Climb0.47 mi151 ft6.0%
S St Vrain Dr Climb0.70 mi285 ft7.6%
Cedar Dr Climb0.77 mi161 ft4.0%
Riverside-Raymond2.14 mi299 ft2.6%
Raymond to Ward9.66 mi1,572 ft3.1%
Colorado 72 Climb1.41 mi272 ft3.7%
Peak to Peak after Raymond/Riverside Connection0.74 mi308 ft7.6%
Peak-to-Peak Southbound Overland Rd to Ward4.29 mi702 ft2.8%
Peak To Peak Hwy Climb1.30 mi318 ft4.6%
Ward to Buckingham Park Downhill13.86 mi-3,215 ft-4.4%
The Pay Off13.69 mi-3,087 ft-4.3%
Lefthand Canyon Dr Climb0.57 mi318 ft10.5%
5 Mile Drop4.97 mi-1,096 ft-4.2%
Backside Lee Hill to Olde Stage Descent 3.46 mi-597 ft-3.3%
Buck Sprint down2.46 mi-282 ft-2.2%
Lefthand from Old Stage to Greenbriar2.49 mi-322 ft-2.4%
Welcome to Boulder - Final Hill to Green US36 Sign0.75 mi72 ft1.6%
19th - Violet to Iris1.21 mi-92 ft-1.4%
Kalmia Circle Climb0.47 mi276 ft11.0%
Downhill Deathsprint to Iris0.47 mi-66 ft-2.6%