
🌤 Weather at Machias River Corridor by season
| Spring | Summer | Fall | Winter |
|---|---|---|---|
| 21–63 °F | 53–77 °F | 30–68 °F | 11–34 °F |
Each range runs from the coldest monthly average low to the warmest monthly average high in that season (1991-2020 climate normals), measured at Wesley, 8 mi away, elevation 410 ft. Conditions at the park can differ from the station, especially where elevation differs — check a forecast before you go.
🏆 Wild Atlantic Salmon River — One of the last wild Atlantic salmon rivers in the US — 60+ miles of protected wilderness corridor
Machias River Corridor protects over 60 miles of the Machias River — one of the last rivers in the United States supporting wild Atlantic salmon. Atlantic salmon once spawned in every major river from Connecticut to Maine, but dams, pollution, and overfishing have eliminated them from all but a handful of Maine rivers. The Machias remains wild and undammed, flowing through remote Downeast forest. The river’s name comes from the Passamaquoddy word “Mechises” meaning “bad little falls.”
Visitor Information
| Detail | Information |
|---|---|
| Location | Washington County, ME |
| Entry Fee | Free |
| River | 60+ miles undammed! |
| Species | Wild Atlantic salmon — critically endangered! |
Frequently Asked Questions
Can I fish for Atlantic salmon?
Catch-and-release only for Atlantic salmon — they are protected under the Endangered Species Act. However, the Machias offers excellent fishing for smallmouth bass and brook trout.
Why is it called Downeast?
“Downeast” comes from sailing terminology — prevailing winds blow from southwest to northeast along the New England coast. Ships sailing from Boston to Maine sailed “downwind” and “east” — hence “downeast.” Returning to Boston meant sailing upwind. The term now refers to eastern Maine’s distinctive culture — lobster fishing, blueberry barrens, granite quarries, and a rugged independence that defines Maine identity.
Make it a road trip: Pair a visit with Duck Lake (within about an hour’s drive) or Rocky Lake (within about an hour’s drive).
🐟 Visit Machias River Corridor
60+ miles — one of the LAST wild Atlantic salmon rivers in America.
About Machias River Corridor
Machias River Corridor public reserved land protects one of Maine’s most scenic and undeveloped river corridors in Washington County — the state’s easternmost and most remote county. The Machias River is famous for its Atlantic salmon run — one of the last wild Atlantic salmon populations remaining in the United States.
Things to Do
Canoeing and kayaking the Machias River (Class I-III), fishing for wild Atlantic salmon (catch-and-release), primitive camping along the river, birdwatching, and experiencing genuine Down East Maine wilderness.
Insider Tips
First naval battle: Machias was the site of the first naval battle of the American Revolution (June 12, 1775) — colonists captured the British armed schooner HMS Margaretta. Pro tip: The Machias River is a premier Atlantic salmon river — one of the last remaining US rivers with wild Atlantic salmon runs. Downeast Maine: “Downeast” refers to the sailing direction — ships sailed downwind (east) from Boston to Maine.
Best Time to Visit
Summer: Kayaking and wildlife. Fall: Remote Downeast foliage. Spring: Salmon run and high water. Winter: Extremely quiet — true solitude.
🐾 Dogs & Pets at Machias River Corridor
Park policy: Maine's rules for Public Lands (01-670 C.M.R. ch. 51, § 1.5) require pets in campsites to be kept leashed and not left unattended; outside campsites, pets must be kept under control (rule text at law.cornell.edu, checked November 2026).
- Pets allowed?
- Yes, pets must be leashed and attended at campsites and kept under control elsewhere on these Maine Public Lands
Are dogs allowed at Machias River Corridor?
Yes, pets must be leashed and attended at campsites and kept under control elsewhere on these Maine Public Lands.
More: Maine state parks guide · Dog rules in all 50 states compared
Park Map
Plan your gear for Machias River Corridor
From our editorial guides, matched to this park’s activities:












