These glacial potholes were formed about 10 to 11 thousand years ago as the last glacier melted. Sand and gravel caught in the eddies and whirlpools of the water of the melting glacier was swirled with such force that it literally drilled holes into the rock, forming the so-called potholes. There are more than 80 potholes at this location. The depth of the deepest pothole is 60 feet deep.

tcbscott

October 11, 2025

Hiking

Probably one of the most highly trafficked of the Minnesota's State Parks. Worth at least the short walk around the potholes, and check out more of the park or the Wisconsin side which is much bigger.

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Best routes to Glacial Potholes, Interstate State Park

5.0

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1. Walter F. Mondale River Trail & Railroad Trail Loop — Taylors Falls, Minnesota

4.53km

01:12

50m

40m

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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4.3

(3)

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2. Lake of the Dalles Loop Trail via Echo Canyon Trail — Taylors Falls, MN

6.65km

01:51

120m

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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Easy

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3. Interstate Park Visitor Center – Walter F. Mondale River Trail loop from Taylors Falls

3.26km

00:52

40m

30m

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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Elevation 220 m

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Tuesday 10 February

1°C

-4°C

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Max wind speed: 22.0 km/h

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Location: Taylors Falls, Chisago County, Minnesota, United States

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Glacial Potholes, Interstate State Park

1. Walter F. Mondale River Trail & Railroad Trail Loop — Taylors Falls, Minnesota

2. Lake of the Dalles Loop Trail via Echo Canyon Trail — Taylors Falls, MN

3. Interstate Park Visitor Center – Walter F. Mondale River Trail loop from Taylors Falls

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