Routes

Planner

Features

Updates

App

Get the App

Blackmer Lake Trail – Blackmer Lake loop from Castlewood Park

Blackmer Lake Trail – Blackmer Lake loop from Castlewood Park

Easy

4.7

(6503)

7,735

riders

Blackmer Lake Trail – Blackmer Lake loop from Castlewood Park

01:10

21.9km

120m

Gravel riding

Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: June 23, 2026

Tips

Temporary access restrictions

Includes segments with temporary access restrictions.

After 9.40 km for 75 m

Customers only

Waypoints

Start point

Parking

Get Directions

1.96 km

Marjorie Perry Nature Preserve

Highlight • Lake

Explore the beauty of the Marjorie Perry Nature Preserve, with soft-surface trails winding through diverse habitats like grasslands, wetlands, and wooded areas. The preserve has views of the Rocky Mountains and opportunities for birdwatching and other wildlife viewing. To protect the ecosystem, visitors must stay on designated trails.

Tip by

3.32 km

Blackmer Lake Trail

Highlight (Segment) • Trail

The waters of Blackmer Lake itself are private, but you can still run a nice, unpaved singletrack loop around it.

Tip by

3.95 km

Blackmer Lake

Highlight • Lake

This nice little lake is surrounded by some nice trails. The area is not that large but the trails connect up with a larger network of trails that are pretty good for putting together a fun mixed surface loop. The area around the lake has some of the nicer dirt tracks.

Tip by

21.9 km

End point

Parking

Way Types & Surfaces

Way Types

9.45 km

7.75 km

2.08 km

1.88 km

713 m

< 100 m

Surfaces

9.21 km

9.16 km

1.88 km

1.56 km

109 m

Elevation

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

Highest point (1,720 m)

Lowest point (1,650 m)

Weather

Today

Saturday 27 June

34°C

20°C

0 %

Additional weather tips

Max wind speed: 24.0 km/h

to get more detailed weather forecasts along your route

Comments

Want to know more?

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

Navigate

Send to Phone

Save

Edit route

Download GPX

Move start point

Embed on a website

Report an Issue

Report restricted access

Nearby routes

Moderate

3.8

Rocky Mountain Arsenal National Wildlife Refuge Perimeter Trail

03:58h

43.4km

130m

Moderate

4.6

145

Wetlands View – Start of the Colorado Trail loop from Roxborough Park

02:28h

30.7km

260m

Moderate

4.7

157

View from Chatfield Dam – South Platte Reservoir loop from Littleton - Mineral

03:48h

58.8km

380m

Moderate

5.0

Blackmer Lake loop from University of Denver

02:19h

43.3km

140m

Moderate

5.0

Sumac Hill Farm viewpoint – Mineral Avenue Trail loop from Littleton - Mineral

03:15h

54.7km

270m

Moderate

5.0

Sumac Hill Farm viewpoint loop from Littleton Downtown

02:09h

36.4km

110m

Hard

5.0

Highlands Point Viewpoint – East/West Regional Trail loop from Spring Gulch Dam

04:23h

52.6km

620m

Hard

4.0

View from Chatfield Dam – Wetlands View loop from Sky Ridge

06:48h

102km

800m

Moderate

4.0

View of the Arvada Blunn Reservoir – Bridge into Golden loop from Jeffco Government Center

02:22h

40.9km

360m

Easy

Blackmer Lake loop from Southmoor

01:35h

28.2km

120m

Moderate

5.0

Blackmer Lake – Sumac Hill Farm viewpoint loop from Dayton

02:59h

53.9km

190m

Moderate

Sumac Hill Farm viewpoint – Bike Park Dirt Jumps loop from Willow Springs Open Space

02:10h

32.5km

90m

Blackmer Lake Trail – Blackmer Lake loop from Castlewood Park

Marjorie Perry Nature Preserve

Blackmer Lake Trail

Blackmer Lake

Nearby routes

Sign up or log in to keep exploring this route

We value your privacy ⛰️

We value your privacy ⛰️