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Zion 100k



66.3 mile 106.7 kilometer loop
94% Runnable


Ascent: 6,725' 2,050 m
Descent: -6,751' -2,058 m
High: 5,399' 1,646 m
Low: 3,450' 1,051 m


Avg Grade: 4% (2°)
Max Grade: 48% (26°)


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Trail shared by Matt Anderson

One of the most spectacular trail races in the Utah desert.

Matt Anderson

Features Spring · Views · Wildflowers


A challenging, scenic run through the southern Utah desert adjacent to Zion National Park. The 100k, course includes 3 steep climbs onto mesas that offer incredible views of the varied geological features of the area.


This course starts out with a steep climb up the Flying Monkey Trail up onto the mesa, where you'll find an aid station. You'll do a six mile loop at the top and then come back down the way you came up before heading east towards the Dalton Wash aid station. There is a small stream crossing around mile 13.5, but if you cross it in the right place, your feet should stay dry.

After hitting the Dalton Wash aid station for the first time, you'll climb over the hill on a singletrack trail for a mile, then head up the dirt road 4 miles to the top of the mesa where the Guacamole Trail begins. There is an aid station near the beginning of the 7.5 mile loop that you'll pass through on your way out and back, then you'll head back down to the Dalton Wash aid station for the second time (mile 30ish).

You'll then cross the highway and start across the desert towards the looming Gooseberry Mesa. You'll scramble up a 1,500 ft ascent to the Goosebump aid station and then head out towards Gooseberry Point. A half mile from the overlook point will be an aid station that you'll pass through on your way out and back from the overlook (mile 40). You'll then hug the south rim of the mesa for a mile or so before heading inland, angling back towards the Goosebump aid station, which you'll hit a second time around mile 47.

From here, you'll take a dirt road just over six miles to the Grafton Mesa aid station. You'll then run north to the end of Grafton Mesa, where you'll drop down off the mesa to an aid station at the bottom of a wash near the ghost town's cemetery (mile 57.5). You'll then head back up the mesa and will work your way back to the Grafton Mesa aid station for the second time, then back to the Goosebump aid station for a third time (mile 68.5)

From here, the 100K drops off of Gooseberry Mesa and heads west, passing through the Virgin Dam Aid station before traversing the desert to the finish line.

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Trail Ratings

  5.0 from 2 votes


in Virgin


  5.0 from 2 votes
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26 Views Last Month
2,321 Since Apr 14, 2016



On the Gooseberry rim trail.
Apr 14, 2016 near Hurricane, UT
Common view from Guacamole Trail section of the course.
Apr 14, 2016 near Springdale, UT
Zoey the Great Dane on Guacamole Mesa
Mar 30, 2019 near Springdale, UT
South Rim Trail
Jan 8, 2019 near Hurricane, UT
South Rim Trail
Jan 8, 2019 near Hurricane, UT
South Rim Trail
Jan 8, 2019 near Hurricane, UT

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