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Mountain biking trails

Black Diamond Shaft – Stewartville Trail loop from Deer Valley High School

Routes

Mountain biking trails

Black Diamond Shaft – Stewartville Trail loop from Deer Valley High School

Moderate

4.9

(8027)

13,654

riders

Black Diamond Shaft – Stewartville Trail loop from Deer Valley High School

03:11

30.7km

880m

Mountain biking

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: July 1, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Black Diamond Mines Regional Preserve

Waypoints

Start point

Bus stop

Get Directions

4.26 km

Contra Loma Trail

Highlight (Segment) • Trail

This trail is a great alternate route from Ridge Trail to Stewartville Trail, with stunning views from the top of the hill. Plenty of cows call this area home and …

Tip by

9.50 km

Black Diamond Mines Regional Preserve

Highlight • Historical Site

This preserve is a treasure trove of history, home to the remnants of three mining towns, including former coal and sand mines. The park features include an underground visitor center, …

Tip by

10.8 km

Rose Hill Cemetary

Highlight • Historical Site

The Rose Hill Cemetery is a site of historical significance that commemorates the memories of the miners and their families who once resided in this area. It pays tribute to …

Tip by

13.4 km

Jim's Place

Highlight • Cave

This unusual little underground dwelling's origin is unknown. From the interior, you can see a round stovepipe hole, a square skylight and a shelf opening.

Tip by

13.8 km

Black Diamond Shaft

Highlight • Historical Site

This once 150 feet deep air shaft was put in place to ventilate a coal mine to keep it free from dangerous gasses. There is a short tunnel to access …

Tip by

20.5 km

Stewartville to Ridge Trail climb

Highlight (Segment) • Climb

This steep portion of the trail provides a few switchbacks to ease the grade before reaching the Ridge Trail. There is a rest bench at the junction which is an …

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24.6 km

Stewartville Trail

Highlight (Segment) • Trail

The Stewartville Trail starts just south of the parking lot and runs through the preserve from east to west, linking the former Somersville and Stewartville mining towns. The route gradually …

Tip by

30.7 km

End point

Bus stop

Way Types & Surfaces

Way Types

13.9 km

8.11 km

6.32 km

2.23 km

< 100 m

Surfaces

11.7 km

11.4 km

4.83 km

2.23 km

227 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Weather

Today

Saturday 11 July

35°C

16°C

0 %

Additional weather tips

Max wind speed: 14.0 km/h

to get more detailed weather forecasts along your route

Comments

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Black Diamond Shaft – Stewartville Trail loop from Deer Valley High School

Contra Loma Trail

Black Diamond Mines Regional Preserve

Rose Hill Cemetary

Jim's Place

Black Diamond Shaft

Stewartville to Ridge Trail climb

Stewartville Trail

Nearby routes

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