Katahdin Iron Works

🏆🏆🏆🏆🏆 Industrial Ruins + Gulf Hagas — 1843 iron smelter ruins AND the “Grand Canyon of Maine” — Gulf Hagas, a 3-mile slate gorge!

Katahdin Iron Works preserves the 1843 iron smelter complex AND serves as the gateway to Gulf Hagas — the “Grand Canyon of Maine.” The iron works’ massive stone blast furnace and beehive charcoal kiln are among the best-preserved industrial ruins in New England. Gulf Hagas, a 3-mile slate gorge carved by the Pleasant River, features cascading waterfalls plunging through 100-foot cliffs. The Appalachian Trail passes nearby, and the area is part of the 100-Mile Wilderness — the wildest section of the entire AT.

Visitor Information

Frequently Asked Questions

How hard is the Gulf Hagas hike?

The full Gulf Hagas loop is 8 miles and strenuous — rocky, rooty, and with river crossings. The reward: stunning slate gorge with waterfalls at every turn. Allow 5–6 hours. The Rim Trail offers the best views into the canyon.

About Katahdin Iron Works

Katahdin Iron Works is a state historic site preserving the ruins of a 19th-century iron smelting operation deep in the Maine woods. The site includes a massive stone blast furnace and charcoal kiln ruins — remnants of a once-thriving industrial complex that operated from 1843-1890. Today it’s the gateway to Gulf Hagas — the “Grand Canyon of Maine.”

Things to Do

Exploring the iron works ruins and blast furnace, hiking Gulf Hagas (a dramatic 3-mile slate gorge with waterfalls), camping at the adjacent campground, fishing for brook trout, and learning about Maine’s surprising industrial history in the wilderness.

Insider Tips

Industrial ruins: Katahdin Iron Works operated from 1843-1890 — a remote industrial operation that smelted iron ore in the Maine wilderness. Pro tip: The massive stone blast furnace and charcoal kiln ruins are among the most atmospheric industrial ruins in New England. Gulf Hagas: Nearby Gulf Hagas — the “Grand Canyon of Maine” — is a 3-mile slate gorge with waterfalls.

Best Time to Visit

Summer: Gulf Hagas hiking season. Fall: Gorge foliage — stunning. Spring: Waterfall peak flow. Winter: Accessible by snowmobile only.

Frequently Asked Questions

What is Gulf Hagas?

Gulf Hagas is a 3-mile-long, 500-foot-deep slate gorge on the West Branch of the Pleasant River — called the “Grand Canyon of Maine.” Multiple waterfalls cascade through the narrow gorge, and the AT passes nearby. The hiking trail along the rim is challenging (8-mile loop) but spectacularly rewarding. The remoteness keeps crowds small — you may have the gorge to yourself.