Grindstone Falls
By Armen Suny · Last verified May 2026
Difficulty
Moderate
Trail Length
2.4 miles
Trail Type
Out And Back
Elevation Gain
350 ft
About Grindstone Falls
Grindstone Falls is a quietly scenic waterfall in Maine tucked into the Penobscot River Corridor. Nestled on private land and managed as part of that corridor by SPR, it’s a lesser-known spot that rewards visitors with wooded approaches, mossy rock ledges, and a peaceful plunge pool—perfect for a reflective picnic or a photo stop away from busier trailheads. Because the falls sit on private property within the Penobscot River Corridor (designation: UNKE), visitors should respect access rules and stay on established paths. The short but rewarding approach makes Grindstone Falls a great choice for hikers seeking a moderate outing with classic Maine river scenery rather than a long day on the trail.
The Setting
Grindstone Falls sits at 364 feet within Penobscot River Corridor, fed by the East Branch Penobscot River, in the coastal lowlands of Maine.
Trail & Hike Details
The Approach
The moderate 2.4-mile out-and-back trail gains 350 feet of elevation on the way to the falls.
Trail Description
The approach to Grindstone Falls is a 2.4-mile out-and-back hike with roughly 350 feet of elevation gain and is generally rated moderate. The route follows wooded terrain and natural tread to the waterfall; specific USFS trail surface, grade, and class data are not available for this route, and no USFS trail number is provided in the available records. Note that the fall and access route lie on private land within the Penobscot River Corridor managed by SPR—observe any posted access restrictions and stay on the established trail.
What to Expect
Visitors can expect a tranquil waterfall surrounded by forested scenery. The area is likely to be quiet and less crowded compared to more popular waterfalls in Maine.
Accessibility
The trail is not wheelchair accessible. Uneven terrain and elevation changes require steady footing.
Frequently Asked Questions
🐶 Are Dogs Allowed at Grindstone Falls?
❌ Dogs are not allowed
Are There Any Fees or Permits Required?
🆖 No fees required
🏊 Is There Swimming at Grindstone Falls?
❌ Swimming is not allowed
When to Visit
Spring and early summer are ideal for visiting, as water flow is typically strongest during these seasons.
Seasonal Access
The best time to visit is Spring, Summer, and Fall. Winter access may be limited.
Safety Information
Trail conditions may be uneven or slippery, especially after rain. Visitors should exercise caution near the waterfall and avoid getting too close to the edge.
Current Water Conditions
3,890 ft³/s
Current discharge — how much water is flowing
About average for this time of year
Based on 104 years of record
7.31 ft
Water depth at gauge
7-Day Discharge Trend
What does this mean for your visit?
Flow is about average for this time of year.
About This Gauge
Weather Forecast
Location & Access
Getting There
Grindstone Falls is located near the town of Medway, Maine. Access may require navigating rural roads, so a reliable map or GPS is recommended.
Get Directions on Google MapsParking
Parking availability is unclear, but visitors may need to park along the roadside or at a nearby trailhead.
Elevation
364 feet above sea level
Coordinates
45.728384° N, -68.591699° W
Land Management
Managed by SPR
Visitor Tips & Gear
Bring sturdy footwear as trail conditions may vary. Be prepared for limited facilities and pack out all trash to preserve the natural environment.
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With 2.4 miles and 350 ft of elevation gain, sturdy boots and trekking poles will help on this moderate trail. Sun exposure on the trail makes good sun protection a must in summer.
Polarized Sunglasses (Knockaround)
Cuts glare off the water so you actually see the falls — and your photos turn out better too.
Columbia Watertight II Rain Jacket
Packs into its own pocket, seam-sealed, and keeps you dry from spray and surprise rain.
Earth Pak Waterproof Dry Bag
Keeps your phone and gear dry when waterfall mist soaks everything else.
Waterproof Phone Pouch (AiRunTech)
Cheap insurance — take photos right next to the falls without killing your phone.
Timberland Euro Sprint Mid Waterproof
Trusted waterproof boot with premium leather and grippy rubber sole — reliable on rocky, wet trails.
TrailBuddy Trekking Poles
Lightweight aluminum, cork grips, and flip-locks that actually hold — a best-seller for good reason.
Where to Stay
Baxter Park Inn
The Whitetail Inn and Suites- Lincoln
Hotel Terrace
Katahdin Valley Motel
Browse vacation cabins and private rentals nearby
Unique outdoor stays — tents, yurts, and treehouses
Rent a campervan or RV for your waterfall road trip
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Additional Information
Nearby Attractions
The nearby town of Medway offers small-town charm and access to the Penobscot River for additional outdoor activities.
Wildlife
The area may feature local wildlife such as birds, deer, and small mammals. Be mindful of ticks and other insects.
Cities near Grindstone Falls
Nearby Waterfalls
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