Looking west from the Pipeline trail. The zigzag in mid-photo is the BST Rattles...
Looking west from the Pipeline trail. The zigzag in mid-photo is the BST Rattlesnake section, which climbs up to the Pipeline. Original review May 26, 1999 by Bruce, with latest update July 5, 2022.
Mill Creek Pipeline Trail
Upper Pipeline and classic Lower Pipeline

The Upper Pipeline and lower Pipeline trails extend from the bottom of the Mill Creek Canyon and Dog Lake trails to a viewpoint over the Salt Lake valley, with connections downhill through Rattlesnake Gulch . This route is 10.6 miles in length, with the lower half flat and easy, and the upper 5 miles intermediate riding.

The Pipeline can be done as a stand-alone out-and-back ride, either as a whole or in part. For example for beginning riders, starting at Burch Hollow and riding west to the viewpoint and back is a pleasant and easy first-timer cruise.

Many riders experience the Pipeline as the final segment of a shuttled ride of the Wasatch Crest. This can only be done on even-numbered days, because upper Mill Creek is closed to bikes on odd days. (All of the Pipeline is open to ride on any day. But if you're doing only the Pipeline, you might want to consider the downhill traffic on even-numbered days when you plan your ride.)

A hiker on Upper Pipeline as I climb this two-way trail.
A hiker on Upper Pipeline as I climb this two-way trail.
Cruising through maple forest on the lower Pipeline.
Cruising through maple forest on the lower Pipeline.
The western (lower) half of the Pipeline is a great lower-altitude alpine bike ride for beginners. Above Burch Hollow, the top 5 miles require intermediate skill and a bit of climbing muscle if you're doing it out-and-back. The lower half is usually open by mid-April or early May and stays clear of snow until November. The portion above Elbow Fork needs until late June to be dry and clear of snow.

The combination of lower and Upper Pipeline plus the Rattlesnake BST has around 2500 vertical feet of overall climbing, going from 5300 feet elevation to 7600 at the top.

Trailheads
Rattlesnake Gulch trailhead.
Rattlesnake Gulch trailhead.
Rattlesnake Gulch. The Rattlesnake trailhead is 1.5 miles up the Mill Creek Canyon road from Wasatch Blvd. There are bathrooms. The trailhead is located about 3/4 mile uphill from the fee station. (Mill Creek Canyon is a US Forest Service fee area for vehicles. Bikes are free.) There's room for around 20 cars here, but it will fill up quickly on weekends. Info on the Rattlesnake connections on the BST-Rattlesnake trail page.

Church Fork.  Small parking area with sometimes-steep trail leading up to the Pipeline. Located at mile 3.0 from Wasatch Blvd.

Burch Hollow trailhead.
Burch Hollow trailhead.
Burch Hollow. Primitive parking strip along the road, with 0.2-mile trail linking to the Pipeline. At mile 4.1 from Wasatch Blvd. Recommended starting spot for beginners, heading westbound after joining Pipeline. There are no services at this trailhead.
The entry into the westbound lower Pipeline, located just downhill across the br...
The entry into the westbound lower Pipeline, located just downhill across the bridge from the parking strip at Elbow Fork.
Elbow Fork. Primitive parking between the top of the lower Pipeline and the bottom of Upper Pipeline. At mile 5.9 from Wasatch Blvd. The Pipeline trail entries can be found just downhill from the parking area (for eastbound downhill riders), or around 100 yards uphill (for riders heading up the Upper Pipeline). There's a bathroom at this trailhead.
One of the entries into the Upper Pipeline, this one in an area of primitive roa...
One of the entries into the Upper Pipeline, this one in an area of primitive roadside parking just downhill from the overflow lot.

Mill Creek Road Upper Pipeline. Room for a few cars at roadside with short trail up to Upper Pipeline at mile 7.4 from Wasatch Blvd.

GWT/Upper Millcreek -- 3 access points. At mile 8.2 there's roadside parking, then in 0.3 miles miles you'll arrive at the overflow lot. The main lot is 1/10th mile further uphill. All connections to the upper Pipeline are on the south side of the road. There are bathrooms at the upper lots. These trailheads are used for the Dog Lake and Mill Creek Canyon trails, or for a shuttled Pipeline-only ride.

Lower Pipeline
Looking east at Grandeur Peak from the western lower Pipeline trail.
Looking east at Grandeur Peak from the western lower Pipeline trail.
The "lower Pipeline" extends from Elbow Fork on the uphill end to a viewpoint overlooking the valley. It's 7.3 miles long, with 700 feet of elevation loss when done east to west (from Elbow Fork to the viewpoint). The trail surface is mostly very easy, but there's one short up-and-down near Church Fork that's a hike-a-bike for beginners. And the mile of stiff slope when heading uphill from Burch Hollow to Elbow Fork is tough.

Several trails connect the Mill Creek Canyon road to the trail, allowing riders to pick up the trail and bail out at four locations (see the trailhead information). To do the entire trail out-and-back from the Elbow Fork trailhead on the Mill Creek Canyon road, it's 14.6 miles. Some riders climb the paved canyon road and connect to the trail at one of the upper locations, then drop down Rattlesnake Gulch for a loop ride.

Chad passes the Church Fork entry to the pipeline in 1999.
Chad passes the Church Fork entry to the pipeline in 1999.
The terrain is oak brush with occasional open grassy areas, with maple forest an...
The terrain is oak brush with occasional open grassy areas, with maple forest and an occasional fir on the eastern cooler slopes.
Much of the trail is smooth hard-pack dirt. But the narrowness and exposure to steep hillsides make it an "intermediate trail" that's still suitable for brave beginners. Much of the trail is shaded cruising through the woods, while the western third is exposed to wind or heat on steep slopes.

The trail bed is firm, giving good support to your tires even when wet. This is an excellent early-season ride.

Dogs are allowed in Mill Creek Canyon. On odd-numbered days, they can be off-leash. Be sure Fido is compatible with other mutts. You're sure to run into a few of them. Jackie (at left) thinks nothing of this 14-mile run.

Even on weekdays, the trail sees heavy use. On weekends, it's usually packed with hikers and riders. Be courteous. And be smart. Our ER sees occasional head-on collisions by bikers speeding on this trail.
Jackie the Jack Russell terrier and her pet biker. Self-portrait May 26, 1999.
Jackie the Jack Russell terrier and her pet biker. Self-portrait May 26, 1999.
A pipeline elbow sits alongside the trail.
A pipeline elbow sits alongside the trail.
The trail, as you might guess from the name, follows an old water pipeline corridor. You will occasionally spot loops of re-bar poking out of the ground and an iron elbow here and there.
The "lower" Pipeline can be divided into two segments. The easy part is from Burch Hollow west, where the trail is flat and easy to ride. The western segment is ideal for beginning riders, and has been used by many people for their first "dirt" mountain bike ride. An out-and-back ride from Burch Hollow to the viewpoint is 9.2 miles with only around 100 feet of climbing.
View to the west from the Pipeline.
View to the west from the Pipeline.
A typical bit of trail in maple forest.
A typical bit of trail in maple forest.
The harder segment is from Burch Hollow to Elbow Fork. The eastern segment has 600 feet of elevation gain when done from Burch Hollow eastbound. Most of this elevation gain occurs over a single mile of tough climbing. Any rider with good bike control can ride from east to west downhill without much problem, but to go uphill from Burch Hollow requires good aerobic fitness and strong legs.
Two views: Above is a look uphill into Mill Creek Canyon while riding east on th...
Two views: Above is a look uphill into Mill Creek Canyon while riding east on the lower Pipeline trail.
As we round a corner heading west, we're seeing a bit of the Salt Lake Valley wi...
As we round a corner heading west, we're seeing a bit of the Salt Lake Valley with the Bingham Canyon Mine.
Approaching Elbow Fork riding uphill on the Pipeline.
Approaching Elbow Fork riding uphill on the Pipeline.
While most of the Pipeline is easy cruising, I wouldn't recommend taking a newbie down Rattlesnake Gulch -- either the Rattlesnake BST or the expert-level Rattlesnake Gulch trail. Start with an out-and-back from Burch Hollow to the viewpoint.

See the Bonneville Shoreline Trail Rattlesnake Section trail page for further information on these two trails. Rattlesnake BST is an intermediate-level ride but with tight switchbacks that will make beginners dismount. And Rattlesnake Gulch is a steep advanced technical plunge. When the dust gets deep and slippery, Rattlesnake Gulch can be a white-knuckle slide for the best riders.

The Pipeline is an option for winter fat-bike riding. The flat surface packs down nicely. Burch Hollow is a good starting point.
Matt and Dominic hit the snow!
This is a fun ride after a spring storm. Here Dominic Bria follows Matt Flygare through a dip before the days of fat bikes. Ride in the snow, ride on frozen ground, but DON'T ride in the mud!!! Photo March 25, 2000.
Two looks from the lower Pipeline east of Burch Hollow. Here we're looking down ...
Two looks from the lower Pipeline east of Burch Hollow. Here we're looking down into Mill Creek Canyon.
And here's the view down the trail. Maple and scrub oak with a healthy growth of...
And here's the view down the trail. Maple and scrub oak with a healthy growth of grass in the July sunshine.
Here's the deets on a ride plan for experienced beginners. Park at Burch Hollow. Pedal 1.5 miles up the paved road. You'll be gaining 600 feet of elevation, so it's a bit of a grunt. And there's the whole car-dodging thing. Find the entry to the lower Pipeline at Elbow Fork. The trail takes off on your left just before the road takes a sharp turn to the right.Do the entire trail to the viewpoint, then turn around. Watch for the Burch Hollow trail fork on your way back. 5.5 miles from the overlook you'll see a fork in the trail at N 40° 41.954' W 111° 43.434'. Take the right fork 1/4 mile down to the Burch Hollow trailhead. The full trip is around 14 miles.

If you're using the Pipeline as a downhill route from the Wasatch Crest you'll probably descend the Rattlesnake BST or Rattlesnake Gulch to the Mill Creek Canyon road near the canyon mouth. See the Rattlesnake BST trail page for details on these descents.

Matt cranks through the Church Fork area in 1999.
Matt cranks through the Church Fork area in 1999.

Video of the Pipeline...

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Upper Pipeline
Entry to the Upper Pipeline trail for an uphill ride, looking at the right side ...
Entry to the Upper Pipeline trail for an uphill ride, looking at the right side of the road when pedaling uphill. If you're coming down, this is where you'll turn downhill and follow the pavement past the Elbow Fork trailhead.
The Upper Pipeline trail was finished in late 2021. It runs parallel to the paved road from Elbow Fork to the trailheads at the top. For riders coming down from the Wasatch Crest on a shuttled ride, it provides a much-needed alternative to riding on the narrow busy Mill Creek Canyon road. The expected riding season for this portion of the Pipeline will be late June through mid-October.
The Upper Pipeline is 3.4 miles long with 900 vertical feet of elevation gain. The upper end is at 7600 feet. The trail runs along a north-facing slope above the paved road, with occasional climbing switchbacks to gain elevation without making the trail too steep for climbers. The trail has a very different "feel" from the lower Pipeline, with shady fir forest and undulating swooping trail.
Typical trail view heading uphill.
Typical trail view heading uphill.
On a climbing switchback where we ride through a couple of turns to gain elevati...
On a climbing switchback where we ride through a couple of turns to gain elevation.
The Upper Pipeline is a two-way trail, and like the lower Pipeline, it can be done on any day. (Bikes are only allowed on the upper Mill Creek Canyon trails on even-numbered days.) Dogs can accompany you off-leash on odd-numbered days.
If you're doing an out-and-back ride in the lower canyon, I'd suggest doing it on an odd-numbered day. That way you won't encounter shuttled riders blasting down the trail. There are several blind corners that have a high chance for collision if downhill riders don't slow as they approach.
Looking down at a switchback. These are not swooping high-speed turns. This is a...
Looking down at a switchback. These are not swooping high-speed turns. This is a two-way trail, and the switchback platforms are built for climbing. Check your speed when descending.
A rare meadow as we head downhill on Upper Pipeline.
A rare meadow as we head downhill on Upper Pipeline.
The downhill entry to the trail is found just uphill from the Elbow Fork parking area, on the opposite side of the Mill Creek Canyon road.

There are three uphill entries to the trail in the Big Water area, one at each of the parking areas. If you're headed uphill, these will all fork away to the left. If you're riding downhill, just keep straight at the trail forks.

When riding downhill from the Upper Big Water lot, find the parking connector trail on the south side and head downhill. Keep straight as the trail from the lower lot joins to become the lower Big Water trail. In 100 yards, fork right on the Upper Pipeline as Big Water heads uphill.
Trail fork at the lower roadside parking area. Left rolls down to the parking ar...
Trail fork at the lower roadside parking area. Left rolls down to the parking area while the Upper Pipeline continues on the right. (It's one of the few trail forks that has a sign in July 2022, and unfortunately it's signed as "Big Water" which is the destination of the trail, not the NAME of the trail. This is a quirk of Forest Service signage that bugs me. You never know if a sign means you're ON the trail or if it means you have to go this way to GET TO the trail.)
Descending Upper Pipeline past a rock outcrop.
Descending Upper Pipeline past a rock outcrop.
In another 0.4 miles, keep straight as a trail from roadside parking joins. At 1.1 miles from this fork, there's another descending trail to roadside parking. Keep level and veer a bit left.

When the trail turns to cross the creek, head down the road past the Elbow Fork parking area. Veer left across a bridge, then enter the lower Pipeline singletrack on the right side of the road.

Bottom Line!
Awesome "first dirt" riding for beginners, but with lots of fun riding for experts. The drawback is that Mill Creek is very popular -- with good reason -- and will be crowded on weekends. The newer Upper Pipeline trail adds to the ride possibilities and will be much appreciated by riders doing the Wasatch Crest .
Chad ponders the meaning of life as he looks southwest over the Salt Lake Valley...
Chad ponders the meaning of life as he looks southwest over the Salt Lake Valley from the viewpoint at the end of the trail. Meantime, Jackie is pondering whether there are still Powerbars left in his camelbak.
Western easier half of the Pipeline route, from the overlook to Burch Hollow
Western easier half of the Pipeline route, from the overlook to Burch Hollow
Getting there:
Get to Foothill Blvd on the east bench of Salt Lake City via I-215. Exit at 39th South. Take 3800 South eastbound into the canyon. Proceed up the Mill Creek Canyon Road to your chosen trailhead. See the mileage information in the trailhead info above.
Fiscal Note:
There's a $5 fee per car (2020, $3 for seniors), payable as you leave the canyon. It doesn't cost anything if you ride your bike up -- it only costs if you take a car into the canyon.
Eastern part of the Pipeline route, from Burch Hollow to Big Water.
Eastern part of the Pipeline route, from Burch Hollow to Big Water.
Riding resources for this trail:
One-page riding guide to lower Pipeline
GPS track files (right-click and "Save as..."):
    GPX area multi-track file
High-res topo for printing:  View
Lodging, camping, shops:   Links to northern SLC resources