Allagash Falls waterfall
Live Conditions · 230 ft³/s · Much lower than usual

Allagash Falls

Maine 40 ft

By Armen Suny · Last verified Sep 2026

LiDAR & 3D terrain
Photo Credits (5)
1.
Nick Gallop CC BY-NC 2.0 · Flickr
2.
Allagash Brewing CC BY-NC-ND 2.0 · Flickr
3.
Allagash Brewing CC BY-NC-ND 2.0 · Flickr
4.
Thomas Cizauskas CC BY-NC-SA 2.0 · Flickr
5.
Thomas Cizauskas CC BY-NC-SA 2.0 · Flickr

Difficulty

Moderate

Trail Length

0.3 miles

Trail Type

Out And Back

About Allagash Falls

Allagash Falls is a scenic waterfall located along the Allagash Wilderness Waterway in northern Maine. It is a remote and serene destination, offering visitors a chance to experience the beauty of Maine's wilderness. The falls are approximately 40 feet high and cascade over a series of rocky ledges.

The Setting

Allagash Falls sits at 679 feet along the Allagash River, in the foothills of Maine. The falls drop 40 feet.

Height: 40 feet

Trail & Hike Details

Trail Description

The trail to Allagash Falls is a short, unmarked path from the riverbank to the falls. It is relatively flat but may have uneven terrain due to rocks and roots. Visitors should wear sturdy footwear and be prepared for a wilderness setting.

What to Expect

The falls drop 40 feet. Dogs are welcome.

Accessibility

The trail is not wheelchair accessible. Uneven terrain and elevation changes require steady footing.

Frequently Asked Questions

🐶 Are Dogs Allowed at Allagash Falls?

✅ Dogs are allowed

Are There Any Fees or Permits Required?

🤑 Fee: $0.00
Permit required
Permits are required for overnight camping along the Allagash Wilderness Waterway. Contact the Maine Bureau of Parks and Lands for more information.

🏊 Is There Swimming at Allagash Falls?

❌ Swimming is not allowed

When to Visit

spring summer fall

The best time to visit is during late spring, summer, or early fall when the weather is mild, and the river conditions are favorable for paddling.

Seasonal Access

The best time to visit is Spring, Summer, and Fall. Winter access may be limited.

Safety Information

Exercise caution near the falls, as the rocks can be slippery, and the currents are strong. Be prepared for wilderness conditions, and carry a first aid kit. Let someone know your travel plans if visiting the area.

Current Water Conditions

Updated about 2 hours ago Barely Flowing

230 ft³/s

Current discharge — how much water is flowing

Much lower than usual for this time of year

Based on 97 years of record

1.89 ft

Water depth at gauge

60°F

Cold

Bracing — limit time in water

7-Day Discharge Trend

What does this mean for your visit?

Flow is well below normal for this time of year, so the waterfall may be a trickle. Water temperature is a bracing 60 degrees F, limit your time in the water.

About This Gauge

This gauge is on a nearby waterway and may not reflect exact conditions at the falls.

USGS 01011000
8.6 miles from waterfall
Drainage: 1,478 sq mi
Altitude: 604 ft

7-Day Flow Outlook

Based on the USGS gauge Allagash River near Allagash, Maine (14 km away).

Moderate confidence
Barely Flowing right now
230 cfs
→ Holding steady
0000000TodayTomorrowThuFriSatSunMon

Today

Barely Flowing

230 cfs

5/10

Tomorrow

Barely Flowing

250 cfs

5/10

Thu

Barely Flowing

242 cfs

4/10

Fri

Barely Flowing

239 cfs

5/10

Sat

Barely Flowing

222 cfs

5/10

Sun

Barely Flowing

233 cfs

5/10

Mon

Barely Flowing

260 cfs

5/10

Best window: Today — barely flowing flow, widespread frost then sunny (trip score 5/10).

Best time of year: this gauge typically runs highest from early April to late June, peaking in May.

How we calculate this

This is a transparent outlook, not a precise forecast. We take the waterfall's current flow strength (how it ranks against its historical normal for today, from the nearest USGS stream gauge), carry that ranking forward along the gauge's seasonal curve, and nudge it for forecast rain. Confidence is highest for the next day or two and falls further out. Always check official conditions and your own judgment before visiting — high flows can be dangerous.

Know when to go.

Get a free email alert when waterfalls near Grand Isle hit peak flow. We only send when conditions are worth the trip — no weekly newsletters, no spam.

Weather Forecast

The Terrain, Seen by LiDAR

Aircraft-mounted lasers measured this ground to within inches. Trees and buildings are digitally stripped away, leaving the bare shape of the land the water has carved.

The ground through the falls loses about 50 feet in steep steps rather than one leap. The listed height of 40 feet matches what the lidar sees. The ground at the falls is roughly 671 feet above sea level.

The ground changes about 50 feet in the 500 feet above the falls and 39 feet in the 500 feet below. The falls face northeast and catch soft morning light.

Aerial photo of the same ground around Allagash Falls near Grand Isle, Maine, for comparison with the lidar view LiDAR bare-earth terrain around Allagash Falls near Grand Isle, Maine, showing about 50 feet of drop, a steep tiered drop, facing northeast
Aerial LiDAR bare earth

Drag to compare. The dot marks the waterfall. The frame is about a mile across.

Ground elevation
671 feet
Measured by 1-meter lidar
Drop at the falls
About 43 feet
Change in ground height within ~250 feet of the falls
Faces
Northeast
Catches soft morning light.
Ground profile through the falls

A slice through the lidar ground surface, from above the falls to downstream (heading northeast).

Elevation data: USGS 3D Elevation Program. Aerial imagery: USGS The National Map. Public domain.

Location & Access

Getting There

Allagash Falls is accessible via the Allagash Wilderness Waterway, typically by canoe or kayak. The falls are located near the Allagash River, and visitors often reach the area as part of a multi-day paddling trip. There is no direct road access to the falls.

Get Directions on Google Maps

Parking

Parking is available at designated access points along the Allagash Wilderness Waterway, such as Churchill Dam or Umsaskis Lake, but visitors must paddle to reach the falls.

Elevation

679 feet above sea level

Coordinates

46.950036° N, -69.133098° W

Visitor Tips & Gear

Bring a map or GPS device, as the area is remote and cell service is limited. Be prepared for wilderness conditions, including insects and variable weather. If paddling, ensure you have the necessary skills and equipment for the Allagash River.

Additional Information

Nearby Attractions

Other points of interest along the Allagash Wilderness Waterway include Umsaskis Lake, Churchill Dam, and Eagle Lake.

Wildlife

The area is home to a variety of wildlife, including moose, deer, beavers, and numerous bird species.

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