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+ 164

Armstrong -> CMG Loop

Mountain Biking Trail

Moderate
10.46 mi
1,724 ft
One of Park City's most easily-accessible loop rides.

The proliferation of mountain bike trails in Park City, combined with the ever-increasing trail traffic due to the town’s fame, has led to several directional trails being built and established in the PCMR area. One of the most-ridden uphill-only climbing trails in the region is the Armstrong Trail, and one half of nearby CMG has been designated as downhill-only. With these trails’ easy access from downtown, this combination is a logical loop that can serve as a great introduction to the area or a delightful after work ride.

Armstrong begins near the base of Park City Mountain Resort and the main parking lot that serves as the de facto trailhead during the summer. This switchbacked climbing trail twists and turns through the dense forest near the base of the mountain, slowly gaining elevation and working its way up the mountainside. Since this trail was conceived as a climbing route for mountain bikes, the grades are never too steep to pedal, although you will gain elevation constantly. This trail receives a ton of traffic, so expect other trail users, and be sure to pass courteously.

There are several shorter routes accessible from Armstrong, but for the loop mapped here, pass the major junction with Spiro and pedal all the way up to the Mid Mountain Trail. The Mid Mountain Trail anchors the Park City trail system, connecting the entire system together via a popular corridor. The loop mapped here follows Mid Mountain for a couple of miles, before turning left onto CMG.

The upper section of CMG is technically a two-way trail, although most people descend it. The upper section is fast and wide-open, with a few rough rock sections to keep things interesting. None of the rock features are large or exceedingly technical, but they do provide a little entertainment and a welcome change from Park City's generally-smooth trail tread. As CMG winds around and down the mountain, beautiful views of Park City will open up below you.

The final section of CMG is downhill-only as it twists and turns through the dense forest near the base of the mountain. After swooping through a series of switchbacks, you’ll suddenly pop back out at the parking lot, asking yourself, “why does it have to be over already?!" Written by Greg Heil
Created By
Strava Routes

Route and Elevation

Segments

NameDistanceElev. Diff.Avg. Grade
Armstrong, M M, CMG, Loop10.31 mi1,499 ft0.1%
PCMR Lot to Pinecone5.06 mi1,421 ft5.3%
Armstrong CMG Full Loop10.42 mi1,499 ft0.0%
FLOW PLUS0.46 mi-89 ft-1.5%
FLOW0.32 mi-43 ft-2.4%
Silver Spur to Armstrong0.37 mi-59 ft-1.3%
Flow -trees to spiro0.24 mi49 ft0.5%
Armstron to Chair Lift1.13 mi331 ft5.6%
Armstrong to Ham Trail2.84 mi965 ft6.4%
Armstrong to Pinecone4.56 mi1,476 ft6.1%
Arm - Dawn1.56 mi446 ft5.4%
Full Armstrong to Pincone start4.61 mi1,460 ft6.0%
Armstrong to Mid Mountain3.89 mi1,339 ft6.5%
armstrong4.28 mi1,368 ft6.0%
Lower Armstrong1.08 mi295 ft5.2%
Armstrong to Ham2.95 mi915 ft5.8%
Armstrong-Top of Spiro5.43 mi1,421 ft4.4%
Armstrong to MM/Pinecone Intersection4.49 mi1,421 ft6.0%
White Pine Canyon Rd Climb3.81 mi1,276 ft6.3%
Unnamed Rd Climb0.74 mi272 ft6.9%
Armstrong Segment 2 King Con to Ham Trail1.89 mi591 ft5.9%
Dawn's to HAM1.43 mi472 ft6.2%
W Snow S Ln Climb0.71 mi266 ft7.0%
Ham to Mid Mountain 1.21 mi469 ft7.3%
rock it0.19 mi59 ft5.6%
Unnamed Rd Climb0.92 mi364 ft7.4%
Ham Trail to start of Pinecone1.45 mi522 ft6.8%
Upper Armstrong0.81 mi299 ft7.0%
Armstrong/Mid Mountain ALL THE WAY to Pinecone0.58 mi171 ft5.5%
Arm/Mid Mtn to Pinecone0.46 mi144 ft6.0%
Worst Reroute ever!1.21 mi-177 ft-2.0%
new mid mtn pinecone connect1.08 mi-161 ft-2.3%
armstrong/midmountain to spiro intersection descent1.13 mi-174 ft-2.6%
MM Flowy Dash - Awesomeness1.01 mi-121 ft-0.8%
CMG (Mid-mountain to Eagle)0.96 mi-364 ft-7.1%
CMG Down (MM to bridge)2.53 mi-1,073 ft-8.0%
MidMtnCMG to Eagle0.78 mi-331 ft-8.0%
MM/CMG to PCMR Walk-a-Bike Gate2.92 mi-1,142 ft-7.4%
CMG snippet0.58 mi-233 ft-7.5%
Lower CMG DH1.88 mi-764 ft-7.7%
MId Mtn CMG down 9/132.84 mi-1,168 ft-7.8%
2022 MidWeekMTB PCMR Mini Enduro Stage 1 CMG1.54 mi-643 ft-7.9%
CMGEagle cut off to CMG Road1.04 mi-505 ft-9.1%
Drop It Like Its Hot0.77 mi-335 ft-7.9%
Another CMG snippet0.65 mi-282 ft-8.1%
Lower CMG to the bridge0.89 mi-348 ft-7.3%
CMG DH Tree Speed Berms0.65 mi-220 ft-6.1%
p2p bonus dh0.29 mi-95 ft-6.0%
Big Finish0.30 mi-92 ft-5.7%
CMG Finale0.21 mi-82 ft-7.1%