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Routes
Road cycling routes
United States
South Dakota
Pennington County
Keystone

Sylvan Lake – Needles Highway loop from Keystone

Routes
Road cycling routes
United States
South Dakota
Pennington County
Keystone

Sylvan Lake – Needles Highway loop from Keystone

Hard

3.0

(12)

55

riders

Sylvan Lake – Needles Highway loop from Keystone

05:07

95.0km

1,620m

Road cycling

Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride. The starting point of the route is accessible with public transport.

Last updated: March 19, 2026

Tips

The surface for a segment of your route may not be suitable

Some segments of your route comprise a surface that may not be suitable for your chosen sport.

After 16.5 km for 757 m

Waypoints

A

Start point

Train Station

Get Directions

1

6.16 km

Rock Formations in Black Hills National Forest

Highlight • Natural Monument

The Black Hills are fossil-rich and from a distance the darker and denser vegetated ridgelines make them appear dark or even black.

Tip by

2

11.3 km

A decorative gate to a private residence that can be admired from Old Hill City Road. The carved metal gate depicts local wildlife and mountain scenes.

Tip by

3

32.5 km

Sylvan Lake

Highlight • Lake

Lake Sylvan is a pretty reservoir that attracts a lot of people in summer, as its shores made up of granite chaos are so photogenic. You can practice swimming, but …

Translated by Google •

Tip by

4

38.9 km

Needles Highway

Highlight (Segment) • Trail

The Needles Highway is a 14-mile road that is often called the most scenic road in the world. It passes through pine and spruce forests, meadows surrounded by birch and …

Tip by

5

72.6 km

Iron Mountain Road

Highlight (Segment) • Trail

Also known as 16A, Iron Mountain Road is an iconic road in the Black Hills. The road has a large amount of switchbacks as it climbs the mountains, which helps …

Tip by

6

87.4 km

Norbeck Overlook

Highlight • Viewpoint

After climbing switchback after switchback climbing Iron Mountain Road, you are rewarded with a great view of Mount Rushmore.

There is a viewing area, so you can pull off the …

Tip by

B

95.0 km

End point

Train Station

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Way Types & Surfaces

Way Types

72.4 km

19.6 km

2.37 km

569 m

Surfaces

82.5 km

11.7 km

569 m

153 m

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Elevation

Elevation

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

Highest point (1,940 m)

Lowest point (1,170 m)

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Weather

Powered by Foreca

Today

Thursday 7 May

14°C

3°C

28 %

Additional weather tips

Max wind speed: 12.0 km/h

to get more detailed weather forecasts along your route

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

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Nearby routes

Moderate

12

Custer loop via Needles Highway

02:37h

51.0km

890m

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