Armstrong Spiro Loop
ElevationAscent: 1,519' 463 m
Descent: -1,552' -473 m
High: 8,428' 2,569 m
Low: 6,930' 2,112 m
GradeAvg Grade: 6% (4°)
Max Grade: 20% (11°)
Popular runs nearby
Jupiter Peak Steeple Chase
15.5 mi 24.9 km • Point to Point • 3,399 ft Ascent 1036.16 m Ascent
Silver Lake to Ontario Loop
3.9 mi 6.3 km • Point to Point • 1,058 ft Ascent 322.42 m Ascent
Dog Lake and Desolation Lake
8.5 mi 13.6 km • Loop • 2,133 ft Ascent 650.01 m Ascent
Brighton Lakes to Sunset Peak
6.1 mi 9.9 km • Out and Back • 1,837 ft Ascent 559.87 m Ascent
3.3 mi 5.3 km • Out and Back • 1,486 ft Ascent 452.87 m Ascent
Discrete Cirque Series - Alta, UT
7.1 mi 11.4 km • Loop • 2,469 ft Ascent 752.57 m Ascent
Navigate on-trail with our free app
“This enjoyable loop has good views and proves a do-able challenge in one neat package.”— Megan W
Armstrong climbs at a remarkably constant, moderate grade that makes the uphill pretty enjoyable. To start, the trail contours around the hillside mostly shaded by aspen trees. After passing the base of the King Con chairlift, the serious switchbacking begins, although this ascent feels gentler than ascending the Spiro Trail.
Armstrong ends at the junction with Mid Mountain Trail. Take the Mid Mountain Trail uphill for a couple more short switchbacks before it heads downhill, due south. If you find yourself traveling north (and entering the Canyons Ski Resort) you've gone the wrong way. Contour around the hillside, gradually losing elevation. Soon after the Motherlode chairlift appears on your left (to the east), be watching for the junction with the Spiro Trail.
Take the Spiro Trail downhill on a somewhat steeper descent. The trail itself is a lovely trek at a consistent grade through aspens and clumps of wildflowers. You'll cross many ski runs, and part of the navigational enjoyment is to orient yourself to where you ski in the winter months. The switchbacking of the trail increases at the bottom, providing more views of the Park City area. End this loop run at the Crescent Road trail access or head back on Silver Spur to reach the Park City ski resort base.
Run this trail?
We need help with the following missing trail information:
Need to Know, Dogs Allowed, Flora & Fauna, History & Background