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Lower Mill B North Fork Trail in Winter

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The Lower Mill B North Fork Trail with its majestic views and serenity is magical in the winter! It begins with beautiful Hidden Falls (0.25 easy miles) and continues up to a lovely overlook of the canyon and view of the Salt Lake Valley.

This trail begins at the S-curve part way up Big Cottonwood Canyon. It starts across from the Mill B South trail that leads from up to Lake Blanche, Lake Florence and Lake Lilian.

Mill B North Trailhead

In the winter the Mill B Parking Lots aren’t plowed, so you will probably have to park on the side of the road. You will have to head to the top side of the “S”-Curve on the north side of the street. The Mill B North trail heads the opposite direction past Hidden Falls, up to the overlook and beyond towards the Desolation Trail and other intersections with Millcreek Canyon. For this post, I am only including the 2.2 moderate miles to the overlook. The detour to the falls is only about 0.1 miles. For the falls head to the left of the sign.

Hidden Falls is a big reward with little effort.

To continue, return to the sign and head up the stairs. In the winter you can’t see that they are actually stairs, so I am including a summer picture for reference.

This first part of the trail has a lot of switchbacks as you gain elevation quickly.

Looking east you can see striking Sundial Peak. Lake Blanche is at the base of it.

Soon you come to the top of the hill and the trail continues further north. The first photo is looking ahead on the trail and the second is looking back. The third is looking west.

This area has a lot more trees and is nicely shaded most of the day!

There is a tiny bit of water along part of the trail, but it’s easy to avoid by stepping on the rocks and not deep anyway.

Soon you will come to a sign that points the way to a sharp right, heading up through the pines.

This is such a pleasant hike with the beauty and shade!

The mountains around are so beautiful!

I didn’t see them until on my way down, but some backcountry skiers and then some snowboarders passed near the trail.

Just before the top you can see a view down into the city!

When you reach the top of the hill the lookout will be just off the trail. There is a sign that clarifies to turn right to the overlook or left to continue on the Mill B North Fork Trail. Head off to the right and climb up to the viewpoint.

I loved seeing the cottontail rabbit tracks in the snow. The rabbits leap, landing with their smaller front paws one in front of the other. Then their hind feet land further in front, so that’s how they get the odd arrangement.

The mountains are incredibly beautiful in every direction. I’ll start looking east up the canyon and go around clockwise with the views.

You can see the Oquirrh Mountains and city in the distance to the west.

Here is a more zoomed in view.

Here are the northern views.

You can still see Sundial Peak from the overlook, but it’s a little obscured.

Stats: Distance – 2.2 miles round trip
Approximate hiking time – 1-3 hours
Elevation gain – 895 feet
Difficulty – Moderate
Trail – well maintained trail of dirt and rocks
Bathrooms – At the Mill B South trailhead
Seasons to hike – Year round (microspikes necessary in winter)
Permits needed – None 

Dogs Allowed – No

Other hikes nearby are Donut Falls, Granite Flume Trail, Mill B South Trail, Ledgemere Cave, and Lake Blanche.


We have so much beauty in Utah to explore! I love hiking and photography and can help you find your next favorite hike! All photos were taken by me!

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