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Bonneville Shoreline Trail
South Traverse Mountain Section

This segment of the Bonneville Shoreline Trail (BST) runs from the South Maple Hollow trail in Draper to the Sensei trail in Traverse Mountain -- with a 0.5 mile section of subdivision streets on the way. (According to the Lehi master trails plan, the pavement link will be replaced by a traversing singletrack trail in the future.) 

Looking south toward Utah Lake from the BST. Trail review by Bruce on October 16, 2022.

 
Important!  This is a pre-publication work page. The section of the BST between 400 West in Lehi and Maple Hollow in Draper is NOT open for riding! The connection to Draper's BST section is incomplete at this time and you should stay away from the construction area. For now, the Draper section from Maple Hollow can be done as an out-and-back. The segment of trail from Sensei downhill to the Autumn Hills Blvd seems to be open and is seeing plenty of riders. Trail names and data are preliminary, as I'm still gathering trail information while awaiting the formal opening of the trail.

 

 
Getting to the trail
From Brookside/Maple Hollow

Most riders will use the Brookside Trailhead in Maple Hollow on the southern side of Traverse Mountain. This trailhead has lots of parking, but is busy enough that it fills up by mid-morning. There's running water, a bathroom, and shaded picnic area. At the top of the trailhead, turn left onto Maple Hollow, then in 0.2 miles, fork left downhill on the BST.

Brookside Trailhead in South Maple Hollow.

Canyon Hills Trailhead (400 West trailhead)

The BST from Maple Hollow hits pavement at 400 West 4330 North in Lehi. There's room for 4 or 5 cars here, but it's not a fully developed trailhead and there's some surrounding construction. Find the singletrack at the eastern side of the paved area and climb uphill on the eastbound BST.

400 West trailhead in Canyon Hills. The trail is at the end of the pavement.

Autumn Hills Blvd BST entry

Use this trail entry spot to climb uphill to Sensei. There's trail access from the sidewalk along Autumn Hills Blvd, but no formal trailhead or parking. Use the 400 West trailhead then backtrack down 400 West, turning right on Mountain View Blvd. Take the next right on Autumn Hills Blvd and follow it as it turns left and westbound again. Watch for the small lane between homes on your right. It will be 0.5 miles between the 400 West trailhead and the entry to the trail.

This is what you're looking for. The trail will climb up to Sensei.

From the Sensei Trail

At the Sensei (Traverse Mountain) trailhead at the water tank above Reggio Circle in Traverse Mountain, pedal 1/10th mile uphill and keep straight at the first switchback. The southbound trail is the BST.

The BST forks away from Sensei at the first switchback turn.

 
BST from Brookside Trailhead to 400 West Trailhead
 -- NOT OPEN from the Lehi side! --
From its origin on the South Maple Hollow trail (0.2 miles from the trailhead), the BST descends north into Maple Hollow. It will drop around 75 vertical feet over 0.2 miles. After it crosses the cindered Maple Hollow doubletrack, it will dip through the ravine and turn back to the south to begin climbing again.

This is the entry to South Maple Hollow. The trail on the other side of the log fence is Zooropa.

The BST will climb gently but steadily as it goes southwest away from Maple Hollow, in an area of thick oak and maple forest. You'll gain about 75 feet over the next 0.9 miles.

Rolling through maple forest as we climb away from Maple Hollow.

At this point, the BST crosses from Draper into Lehi and will drop through some climbing turns, quickly losing 100 feet of elevation.

NOTE:  This connection is not complete as of October 16, 2022. The ends are only 0.1 miles apart, but have 120 feet of elevation difference. At an 8% average slope, this will require 1/3 mile of trail to tie the ends together. Some riders are bypassing the unfinished area on dirt roads, but you have to know where you're going. (When going eastbound, the DT uphill to the Maple Hollow section is hike-a-bike steep. See the GPS track file for navigation.)

View south over Lehi, American Fork, and Utah Lake.

The trail will now begin a slow descent as it heads southwest. You'll cross the Dry Hollow dirt road in a canyon. You're now 0.8 miles from the Lehi end of this BST segment.

Heading into Dry Hollow on the westbound ride. The dirt road can be snaking up the canyon, while the trail turns to the left and traverses the hillside.

Some riders will turn right onto Dry Hollow to climb Maack Hill. There are connections to other primitive trails and doubletracks at the top of the hill. The road gets very steep near the top, so this option should be considered an adventure ride. FYI, the master trail plan calls for a bikes-only trail that will run the length of Dry Hollow in the future.

Looking toward Lone Peak as we ride east on the Lehi segment of the BST.

At the western end, the BST turns abruptly downhill and rolls 100 yards to 4330 North. Resist the temptation to follow the dirt road westbound here. It peters out in a forest of No Trespassing signs. Instead, get onto pavement and head for the continuing singletrack trail 1/2 mile to the west.

Turn left downhill on 400 West, then right on Mountain View Blvd. Take the next right on Autumn Hills Blvd and follow it as it turns left and westbound again. Watch for the small trail corridor between homes on your right at 0.5 miles from the 400 West trailhead. Now climb 1.5 miles to the Sensei trail, keeping to the right at two trail forks.

The western side of the BST becomes increasingly dry and open. Here we're looking east toward Timpanogos near the western end of the trail.

 
BST from Sensei to Autumn Hills Blvd
The BST forks away from Sensei at the first switchback above the trailhead. Keep straight as Sensei turns sharply to the left.

The bottom of this trail lies on Autumn Hills Blvd on the uphill side of the road. Watch for the corridor between homes. It's 0.5 miles on pavement from the 400 West trailhead to the trail entry on Autumn Hills Blvd.

View while descending south on the BST.

This section of trail is 1.5 miles long. From Sensei, it will descend a bit over 400 feet in elevation. There will be multiple hairpin turns, but they're well-built and easy to ride.

The pitch of the trail is fairly gentle and consistent. The riding is suitable for beginners.

Looking toward the Bingham Canyon mine as the trail winds around.

There are two neighborhood connectors as you descend, each on your right. Keep left for the main trail. The uppermost connector goes to a residential circle under construction. The lower connector goes to Seasons View Court.

Looking east toward Box Elder and Timpanogos as the trail winds back and forth.

The trail will cross the cindered water tank road and climb again. There's a short trail on your left to a view area. Around the hill is a picnic table.

The BST now makes a final descent to Autumn Hills Blvd. Turn left on the street and follow it as it turns right downhill. Turn left on Mountain View Blvd, then left uphill on 400 West. At 4330 North, turn east and find the trail at the end of the pavement.

The Lehi master trails plan shows a future trail just above the subdivision that will connect the two current trails so that no pavement riding will be required.

Coasting down through sparse grass on dry hillside.

 
Powerline Road alternate
You may note the powerline doubletrack on your navigation app. It looks like a great shortcut that will eliminate some climbing. But it has some up-and-down riding that make it a bit of work. Personally I think the powerline is harder on my legs than the longer singletrack route downhill and back up.

The Powerline DT is 1.3 miles long. There's a total of 400 feet of climbing from east to west -- compared to 500 total feet of climbing if you descend to the city streets and climb all the way back uphill on the BST.

Climbing along the powerline corridor.

When westbound, the powerline road is on your right at 0.3 miles after the trail crosses the Dry Hollow road. There are actually two entries. If in doubt, look for the wires overhead. At the western end the road turns to the right just above Sensei. Keep straight and a singletrack will take you to the second switchback of Sensei.

If you're coming back from the western end of the BST at 400 West in Lehi, the powerline DT is at mile 0.8 (there will first be a couple of other dirt roads crossing the BST that are NOT the one you want).

One of the spots where the powerline road takes a dip downhill.

Bottom Line

Very easy riding, lots of views over Utah Valley. OK for a quick out-and-back ride if you're local. For a "real" ride, combine it with Sensei, Traverse Traverse, Ann's, and Maple Hollow as a loop ride.

View toward Lone Peak on the BST.

Sample ride:  Loop around Sensei and Ann's
0.0  Brookside TH, South Maple Hollow trail
0.2  L on BST
2.3  R on powerline DT (0.3 after Dry Hollow)
3.6  R on Sensei
7.4  R onto Mo-mentum
8.0  L on Traverse Traverse
 
11.4  R on Ann's
12.3  R on Ann's Connector
13.4  Maple Hollow (upper) trailhead
         R downhill on South Maple Hollow
15.0  Back at Brookside TH
Getting there:

Brookside Drive Trailhead (South Maple Hollow):  Brookside Drive turns to the west off Suncrest Drive, just uphill from the Maple Hollow subdivision. This is about a mile uphill from Utah Valley. Drive past the homes and uphill to the end of the road. The South Maple Hollow trail is on the west side of the road at the top of the parking strip. It will take you to the BST after 0.2 miles. (The higher trail on the right side of the wooden fence is the downhill-only Zooropa. Don't enter.)

400 West Lehi:  Turn off the Timpanogos Highway at 500 West. Go left on Canyon Hills Drive, then at 4050 North turn right. Turn left on 400 West. Drive uphill to 4330 North and find a spot to park. (There's only room for a couple of cars at this time.) The eastbound trail is on the east end. The trail going north and uphill is 0.5 miles west on Autumn Hills Blvd.

Note: The Lehi and Maple Hollow sections DO NOT connect at this time. Do NOT ride it from the Lehi end; it's closed! From the Draper side, stop when you reach a trail-construction zone or closed sign. It's possible to drop off the Maple Hollow BST on a dirt road at mile 0.9 (becomes steep), descend to a westbound dirt road and turn right, then fork right uphill on the Dry Hollow dirt road to climb back back to the Lehi BST.

Traverse Mountain Water Tank trailhead.  From the Timpanogos Highway at 1200 West in Lehi, turn north onto Morning Vista Road. At the roundabout, continue north ( the direction you were going) on Toscana Hills Drive, then left when you reach Vialetto Way. Just as Vialetto Way is coming to its highest elevation and is curving hard left, turn right onto Annuvolato Way. In around 100 yards, turn left uphill on Reggio Circle and follow this paved road uphill as far as you can. At the circle at pavement's end, turn left and climb cindered road to the gravel parking area at the water tank.