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Lower Brewers Trail



5.0 mile 8.0 kilometer point to point


Ascent: 1,339' 408 m
Descent: -71' -22 m
High: 8,388' 2,557 m
Low: 7,120' 2,170 m


Avg Grade: 5% (3°)
Max Grade: 26% (14°)


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Trail shared by Rio Rose Nyssa Whitford

A heart pumping acsent or descent with amazing scenery.

Rio Rose Nyssa Whitford

Electric Mountain Bikes Unknown

Features -none-

Be mindful of two-way traffic and hikers!


Also known as "Chain Reaction," this trail takes off into the trees from the upper part of the Sage Draw loop, climbs through sagebrush and fields of wildflowers (late spring/early summer) along the canyon wall. As you ascend higher the sagebrush fades into pine forests. There are sweeping views of Sinks Canyon and the Popo Agie River. This is a sustained climb with a few small technical sections and some steep spots. It gets a bit mellower toward The Catalyst intersection (a now closed trail). Equally as fun to ride down, Chain Reaction provides a nice view of Wind River peak, the highest peak in the Southern Wind River Mountains.

This trail can be ridden as a short loop by taking the To First Switchback cut off and enjoying the rocky and technical downhill. Some riders do Chain Reaction out-and-back as the ascent and descent are so different. Lots of options so pick your poison. The bottom portion of Brewer's, util the intersection with the First Switchback, is solid intermediate and the upper portion leans more advanced due to steep climbs and a few technical spots.

This trail is popular with hikers, runners, and bikers. Be mindful of others as you enjoy your ride.


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Jul 7, 2019
Dominic Arcuri
Jun 10, 2019
Karim Bekka
Started at Fry Lake and went down to Popo Agie Campground. Trail was mostly dry, only 2 or 3 small snow patches.
Oct 27, 2018
Karim Bekka
Started at Fry Lake and went down to Popo Agie Campground 7.8mi
Sep 6, 2018
Andrew Ruesch
Sep 2, 2018
Karim Bekka
Aug 25, 2018
Karim Bekka
Rode it down hill after a shuttle to the top. It was a lot of fun!
Jul 2, 2017
The Tarnelope
fun! a few punchy steeps
Jun 16, 2016
Dylan Welsh

Trail Ratings

  4.8 from 4 votes


  4.8 from 4 votes
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in Wyoming


64 Views Last Month
1,962 Since Dec 22, 2014



Turn left immediately after this gate for the start of Catalyst SingleTrack!
Jun 20, 2013 near Lander, WY
View of Wind River Peak  heading down from the top
Jul 6, 2015 near Lander, WY
Cruising the high meadows on Fossil Hill.
Jun 20, 2013 near Lander, WY
Wind River Peak in the background as you head down trail toward the Popo Agie river.
Jul 6, 2015 near Lander, WY
Scattered rocks and wild flowers make for an interesting an beautiful ride.
Jul 6, 2015 near Lander, WY
Dense trees give way to more open meadows and spotty forest as you descend down the canyon.
Jul 6, 2015 near Lander, WY

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