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Running trails & routes
United States
Indiana
Monroe County
Bloomington

South Shore Trail & North Shore Trail loop run

Moderate

3.2

(16)

86

runners

South Shore Trail & North Shore Trail loop run

00:41

6.44km

70m

Running

Jog this moderate 4.0-mile loop around Griffy Lake in Griffy Lake Nature Preserve, featuring diverse terrain and lake views.

Last updated: February 26, 2026

Tips

Includes an off-grid segment

Navigation instructions may be limited.

After 5.77 km for 17 m

Waypoints

A

Start point

Parking

Get Directions

1

2.72 km

Griffy Reservoir

Highlight • Lake

Griffy Reservoir is the result of the damming of Griffy Creek and is the heart of the Griffy Lake Nature Preserve. There is a great view of the water (whose level is dependent on the time of year) from the bridge. You also get a lot of views from the trails on the banks of the water.

Tip by

2

3.20 km

View of Griffy Lake from the North Shore Trail

Highlight (Segment) • Viewpoint

The North Shore Trail in the Griffy Lake Nature Preserve has open views of the lake at times and remains tucked in the trees at others. The South Shore Trail system offers a lot of the same features with fewer views of the water. Like many of the other trails in the preserve, this path can be connected to a network of others.

Tip by

B

6.44 km

End point

Parking

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Way Types & Surfaces

Way Types

4.19 km

826 m

664 m

590 m

< 100 m

< 100 m

Surfaces

5.11 km

590 m

509 m

186 m

< 100 m

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Elevation

Elevation

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

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Weather

Powered by Foreca

Today

Tuesday 26 May

25°C

15°C

75 %

Additional weather tips

Max wind speed: 12.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Where can I park for the South Shore Trail & North Shore Trail loop run?

Parking is available at Griffy Lake Nature Preserve. The main parking area is typically near the boat ramp or the nature center, providing convenient access to the trailheads for both the South Shore and North Shore trails.

Is the South Shore Trail & North Shore Trail loop run dog-friendly?

Yes, dogs are permitted on the trails within Griffy Lake Nature Preserve, including this loop. However, they must remain on a leash at all times to protect wildlife and ensure a pleasant experience for all visitors.

What is the best time of year to run this loop?

The Griffy Lake loop can be enjoyed year-round, but spring and fall offer the most pleasant running conditions with mild temperatures and beautiful scenery. Fall foliage is particularly stunning. Be aware that parts of the trail, especially the North Shore, can be muddy and slippery after rain, regardless of the season.

Are there any permits or entrance fees for Griffy Lake Nature Preserve?

No, there are no permits or entrance fees required to access the trails at Griffy Lake Nature Preserve. It is free and open to the public.

What is the terrain like on the South Shore and North Shore Trails?

The terrain varies significantly between the two shores. The South Shore Trail, recently improved, generally follows the shoreline more naturally with rolling hills and valleys. While it has some elevation changes, it's more runnable and consistent. The North Shore Trail, in contrast, is more 'technical' and 'unimproved,' with deteriorated sections that may require scrambling. It's rugged and demands more attention to foot placement, making it a more challenging experience for jogging.

How long does it typically take to complete the South Shore & North Shore loop run?

The loop is approximately 6.4 kilometers (4 miles) long. For jogging, it typically takes around 40-50 minutes to complete, depending on your pace and how much you stop to enjoy the scenery, especially given the varied terrain.

What can I see along the route?

Along the route, you'll experience picturesque views of Griffy Reservoir, surrounded by over 1,200 acres of nature preserve. The View of Griffy Lake from the North Shore Trail offers particularly open vistas. You'll pass through valleys and upland forests, with occasional glimpses of the lake providing a serene backdrop.

Does the trail intersect other well-known paths?

Yes, the route incorporates sections of several other trails within the preserve. You'll find yourself on parts of the West North Shore Loop, Huckleberry Ridge, Nature Trail, Hiking Trail, Griffy Creek Trail, Overlook Trail, and Blue Ridge Trail, among others, as you navigate the loop.

Is this loop suitable for beginner trail runners?

While the South Shore Trail is generally more accessible, the inclusion of the rugged and technical North Shore Trail makes the full loop moderately challenging. Beginners should be prepared for uneven surfaces, potential mud, and some scrambling sections, especially on the North Shore. It's a good route for those looking to progress beyond easy, flat trails.

What should I bring or wear for this run?

Given the varied terrain, sturdy trail running shoes with good grip are highly recommended. Dress in layers, as conditions can change, and consider bringing water, especially on warmer days. A small backpack for essentials and a phone for navigation or emergencies are also good ideas. Be prepared for mud, particularly after rain.

Are there any specific sections to be aware of for safety?

The North Shore Trail is known for being more 'sketchy' with deteriorated sections that may require careful footing or even scrambling. It's important to pay close attention to the trail, especially after rain when it can be muddy and slippery. Always be aware of your surroundings and watch your step, particularly on the more rugged parts of the North Shore.

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