High Rock Bay

Total Miles4.8
Technical Rating
5Moderate
Best TimeSpring, Summer, Fall
Trail TypeFull-Width Road
Accessible By
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Trail Overview

High Rock Bay is an iconic 4.8-mile trail designed for capable four-wheel-drive vehicles and SxSs seeking a rugged journey to the northernmost tip of Michigan's Keweenaw Peninsula. Historically used to access the Keweenaw Rocket Range site—a 1960s meteorological rocket launch facility—this route takes adventurers through dense boreal forests and across challenging terrain. The trail features a series of mud-filled wallows and deep water crossings that fluctuate significantly in depth depending on recent rainfall. Drivers should proceed with caution, as large, submerged boulders frequently lurk beneath the muddy water, posing a high risk of vehicle damage to those who travel too quickly. The route experiences mild elevation changes, ranging from 643 feet up to 994 feet, with a technical difficulty rating that varies between 4 and 5 depending on seasonal moisture. During dry spells, the trail is a moderate challenge, but wet weather transforms it into a slick, muddy corridor requiring high clearance and low-range gears. The trail terminates directly on the rocky shores of Lake Superior at High Rock Bay, where visitors can enjoy panoramic views of Manitou Island and find primitive shoreline campsites. Due to its remote location and unpredictable obstacles, traveling with a winch and recovery gear is highly recommended.

Photos of High Rock Bay

Difficulty

In the dry season this is a difficulty level 4, during high precipitation it's an easy 5.

History

The trail was originally used to access the Keweenaw Rocket Range, a rocket launch site active in the 1960s and 1970s. The site was utilized by NASA and the University of Michigan to launch meteorological rockets into the upper atmosphere.

Technical Rating

5

Status Reports

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Parker R
Jul 20, 2026
2025 Toyota Land Cruiser
Open
NormalMuddy/Wet
The beginning of this trail starting at the Highway 41 sign is super wide and easy save for a few pop holes. The “tougher” part of the trail starting at the left hand turn to High Rock Bay is in good shape and the main water crossing is now elevated with a new construction. All the puddles subsequently were hard bottomed and not super deep even after a thunderstorm. This is an Easy trail on a dry day. I could see some of the deeper puddles being an issue for a stock crossover if you attempted after days of heavy rainfall.
Ed Lewis
Jul 04, 2025
2021 Subaru Crosstrek
Open
Hadn't rained in a while, deepest puddle was 8".
ken Blankenship
May 20, 2025
Open
Muddy/Wet
The road from the end of 41 till you get to the turn for high rock and rocket launch was a 1 easy smoother logging going on but once u turn to head towards high rock the trail gets wet and rough passed a couple vehicles out there on the side before the deeper water holes maybe 25 to 30 smaller water holes but there's 5 or 6 that were deeper I would say 32 inches at the deepest
Kyle James
May 10, 2025
Open
The trail until the turn for high rock bay is logged and graded, no challenges until you turn for high rock. The road there is degraded and probably had 30 water crossings, the final couple are 24-36” deep in some spots. Slow and lots of rocks.
jeff prose
Jun 27, 2024
Open
Normal
Don’t waste your time on this trail, it’s a logging road now. Level 0/10
Griff B
Jun 20, 2024
Open
Normal
Prior report rates this as a 5/10, however, there are logging operations in the area, and the road appears to have been graded since. Consequently, it’s as flat as a pizza and uneventful as boiled hot dogs.
Matt Curtis
May 19, 2024
Open
Muddy/WetRough/Deteriorated
Trails a lot stock friendly. There logging most the way out to the range. Pass 3 Subaru outback wandering back. Don’t know how far there going in but was surprised to see them back there. Other then couple deep water hole riding sides made easy work in 2wd
Rich M
Oct 12, 2023
2023 Jeep Wrangler
Open
Normal
Chris Zajd
Jun 19, 2023
Open
DustyMuddy/WetRough/DeterioratedWashboard
John Minnick
Jun 17, 2023
Open
Normal
Brandon Denucci
May 27, 2023
Open
Normal

High Rock Bay Trail can be accessed by the following ride types:

  • Single Track
  • 50 Inch
  • 60 Inch
  • High Clearance
  • Full Width

High Rock Bay Map

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