HomeMichiganEagle Harbor › Russell and Miriam Grinnell Memorial Nature Sanctuary

Russell and Miriam Grinnell Memorial Nature Sanctuary

4.9 ★★★★★ 92 Google reviews · Running trail in Eagle Harbor, Michigan · Hours vary

Runner's snapshot

Surface
Mixed
Loop distance
Not reported
Shape
Loop
Shade
Not reported
Access
Not reported

Confirmed from Russell and Miriam Grinnell Memorial Nature Sanctuary's own listing, the park or land manager's website, and runner reviews. Blank cells mean we could not verify that fact — we would rather say "not reported" than invent one. There is no Easy / Moderate / Hard rating on this page on purpose: a one-word difficulty score tells you nothing about whether a trail suits your run. Surface, distance, shade and hours do.

MixedLoopScenicHillyTrailhead parkingMile markers

Hiking route, with views from rock outcroppings and dense forests, atop Bare Bluff.

What runners say about Russell and Miriam Grinnell Memorial Nature Sanctuary

Pulled from public reviews of this trail (92 of them) — the things people bring up again and again, in their own words. Nothing here is written by us.

🏞️ beautiful scenery 7 mentions

“An eagle was soaring back and forth below us as we took in the beautiful sights the U.”

Arguably the best views on the Keweenaw from the top of Bare Bluff! The trail in from the parking area is an old two-track. After approx a half mike, you will enter the wooded area and come to a sign where the loop begins. For an easy/moderate hike go to the LEFT (up into the woods) until you reach the top.

★★★★★ — Mary , Sep 2024

Whoever tore up the trailhead needs Jesus. You will park in front of the blue gate and walk about 0.8 miles to the trailhead, denoted by stone arrows on the ground and and the remnants of the parking lot.

★★★★★ — Fancy , Jul 2025

This is where the ancient Keweenaw Fault runs into Lake Superior. Very Strenuous hike; must wear decent shoes (no sandals) and be prepared to huff a lot! Easier route is to go LEFT to the top of the bluff (still strenuous at the end) and come back the same way.

★★★★★ — Drb , Mar 2019

An area I have wanted to hike forever. August 2022 finally got there. When we were there, you could drive right to the Memorial parking area, I have heard there is now a gate a half mile from there. Do not let that stop you. The hike and views at the top were worth every step.

★★★★★ — B , Feb 2023

Excerpts from public Google reviews. Read all 92 reviews →

Trail conditions & character

What this trail is actually like underfoot and overhead, taken from its own listing and from reviews. Each one links to every other trail with the same character. Busy or quiet is reported as a plain fact, not a plus or a minus — a runner heading out alone at dawn often wants company on the path, and someone running intervals wants an empty one.

🏞️ Scenic views 23 mentions

“Once you reach the sign of the bluff overlook map, go left and that will take you to the highest point of the bluff overlook.”

More trails like this →

🅿️ Trailhead parking 11 mentions

“When we were there, you could drive right to the Memorial parking area, I have heard there is now a gate a half mile from there.”

More trails like this →

🔁 Loop trail 8 mentions

“We went right at the loop which I think is the more strenuous direction, but I'm glad we went that way because going down it would be much harder, I think.”

More trails like this →

🌲 Natural surface / singletrack 5 mentions

“Views of Lake Superior, rocky outcrops, and mature forests rewarded us along the path.”

More trails like this →

⛰️ Hills / elevation 5 mentions

“You are climbing along the bottom of the face, across a rock slide area and climbing up a fairly steep gully.”

More trails like this →

🛣️ Paved surface 2 mentions

“It's an easy, smooth trail.”

More trails like this →

📏 Mile markers 2 mentions

“The path is NOT very well tread whether in the woods or in the rocks below; must look for distant blaze markers sprayed/flagged on trees or rocks.”

More trails like this →

Plan your run at Russell and Miriam Grinnell Memorial Nature Sanctuary

The practical stuff

  • AccessHours vary — hours are not posted for this trail, so check before an early or late run
  • SurfaceMixed — more than one surface along the route, so check the segment you plan to run
  • DistanceNot reported. Trail systems often quote total path mileage rather than a single loop, so measure the route you actually want before you drive out.
  • ShadeNot reported. Assume some of it is exposed and carry water in summer.
  • At the trailheadparking — reported by runners
  • Websitemichigannature.iescentral.com
  • Phone(517) 655-5655
  • Social Instagram · Facebook

Where to find Russell and Miriam Grinnell Memorial Nature Sanctuary

Smith's Fisheries Road, Eagle Harbor, MI 49950

Get directions

Running trails near Eagle Harbor

Other trails within easy driving distance — useful when this one is flooded, gated, or just not the run you had in mind today.

Mary Macdonald Preserve at Horseshoe Harbor

4.8 ★★★★★ 197 reviews

Copper Harbor, MI

5 miMixedScenicDog-friendly

7.1 miles away

Black Creek Nature Sanctuary

4.8 ★★★★★ 108 reviews

Calumet, MI

Natural surfaceScenic

Nature preserve featuring hiking trails, a beach, and dunes.

26.8 miles away

Swedetown Recreation Area

4.5 ★★★★★ 23 reviews

Calumet, MI

28.0 miles away

All running trails in Eagle Harbor, MI →

Nearby towns

Listing verified July 2026 from public records, the trail's own website and runner reviews. Trail conditions change — paths flood, gates close at dusk, and shaded woods stay muddy for days after rain. Something out of date? Report a correction. Manage this trail? Send us the details — it is free.