This 1870s Alaska expedition solved the mystery of how Yosemite Valley formed

John Muir’s 1879 Tlingit Canoe Journey to Glacier Bay

In 1879, John Muir set off in a cedar dugout canoe to find what we now call Glacier Bay.

The 41-year-old naturalist, joined by missionary S.Hall Young and four Tlingit guides led by Chief Toyatte, paddled into a world of ice.

Just 85 years before, Captain Vancouver had seen only a small dent in the shoreline where a massive glacier stood. Now, the ice had pulled back 50 miles, and Muir was there to prove his theory that glaciers had carved Yosemite Valley.

His Tlingit guides thought him strange, climbing mountains in bad weather while they huddled by fires. Glacier Bay National Park still holds the magic that made Muir call it “the grandest glacier I have ever seen.

A Bearded Wanderer Arrives in Alaska’s Rugged Frontier

John Muir got off the SS Dakota onto Fort Wrangell’s muddy shore in July 1879.

The 41-year-old nature lover, though engaged to be married, wanted to study Alaska’s glaciers up close. He found the frontier town a mess of rough wooden buildings filled with Tlingit natives and white gold seekers.

Muir called it “a rickety falling scatterment of houses” built over mud. Locals thought him strange for not caring about gold.

Instead, he talked about seeing glaciers to prove ice had carved Yosemite Valley.

Chief Toyatte Agreed to Lead the Unlikely Explorers

Muir and missionary S. Hall Young needed help to travel Alaska’s dangerous waters.

They got a 35-foot cedar canoe led by Chief Toyatte, who Muir called “massive and capable” with amazing “power and skill.”

The crew included four Tlingit guides: Toyatte as captain, Joe as cook and hunter, Billy as translator, and one more guide.

Local church folks warned Young against going “with that wild Muir,” but Young wanted to count native communities while Muir studied glaciers.

The Expedition Paddled Into Uncharted Waters

The small group left Fort Wrangell in October 1879. They paddled northwest through waters full of ice chunks during a season when only seal hunters went out.

Young needed to count native communities, while Muir wanted to find the rumored “ice-mountain” in a mystery bay.

They used British maps from the 1790s that got the area’s layout completely wrong. These old charts showed a huge ice wall where Glacier Bay’s entrance really was.

Vancouver’s Maps Showed a Completely Different Landscape

Captain George Vancouver checked this same coast in 1794 and found only “a small dent” in Icy Strait blocked by a giant glacier over 4,000 feet thick.

His maps showed “a compact sheet of ice as far as the eye can see” going more than 100 miles inland toward the St. Elias mountains.

When Muir came 85 years later, this massive ice wall had pulled back about 50 miles, making a thousand-foot-deep fjord where solid ice once stood.

The Tlingit Guides Thought Muir Might Be a Witch

As they traveled, the Tlingit guides got confused by Muir’s odd behavior. While they stayed by smoky campfires during bad weather, Muir climbed mountains with wild joy.

At camp near Charpentier Inlet, the Tlingits told Young they thought “this Muir must be a witch of some kind, a nakws’aati.”

They couldn’t grasp why anyone felt “so crazy happy in this lean, hard country” that once held salmon, berries, and forests before the glacier ruined everything.

New Life Emerged in the Wake of Retreating Ice

The group paddled through a land stripped of plants but full of sea life.

Ice chunks that broke off from glaciers tapped against their canoe “in an ancient, forgotten language” as they moved deeper into the bay.

The area showed signs of fast change.

Seabirds and sea mammals had moved into the newly open waters. Muir carefully wrote down these changes, watching land “reborn” after thousands of years under ice.

Muir Found His "Grandest" Glacier Deep in the Bay

Deep in the bay, Muir saw what he called “the grandest individual glacier I have ever seen,” likely the Grand Pacific Glacier.

His journal described a huge ice face with streams draining “at least 50 or 60 miles of the range” and a main body about 30 miles across.

The glacier flowed right into the sea, creating amazing sights as house-sized ice chunks broke off and crashed into the water.

The Naturalist Mapped a Changing World

Muir spent hours drawing and measuring the glaciers, noting how fast they moved and signs of recent melting.

He found scratch marks and smooth surfaces on newly bare rock. Working with Young’s community counts, they made the first good maps of places unknown to outsiders.

Muir’s detailed notes gave some of the earliest science records of active glacier shrinking in North America.

Tlingit Elders Named Muir an "Adopted Chief"

The bond between Muir and his Tlingit guides grew from caution to respect. The guides came to value Muir’s love and knowledge of nature.

During a feast in Wrangell after they returned, Tlingit elders formally “adopted” Muir into the Stickeen tribe and named him “Ancoutahan,” meaning adopted chief.

Muir talked to Tlingit groups about how “the brotherhood of all peoples” linked them and how “white man and all people of the world were basically alike.

The Return Journey Carried Revolutionary Findings

After weeks of exploring, the group paddled back to Fort Wrangell with proof that Glacier Bay had changed hugely in less than a century.

Muir’s findings went against current maps, showing one of the biggest environmental changes ever recorded.

His detailed notes revealed that in just 85 years, a solid wall of ice had become a 65-mile-long system of fjords and inlets.

Muir’s Writings Turned Glacier Bay Into a National Treasure

Muir’s lively articles about Glacier Bay for the San Francisco Daily Evening Bulletin brought this amazing area to public notice for the first time.

His vivid stories created huge interest in Alaska’s wilderness and glacier features.

The trip gave key evidence for his idea about how glaciers shaped landscapes, including his beloved Yosemite Valley.

Muir’s work led to Glacier Bay becoming a national monument in 1925, creating one of America’s most important wild areas.

Visiting Glacier Bay National Park and Preserve, Alaska

You can explore Glacier Bay National Park for free and learn about John Muir’s famous 1879 canoe expedition with Tlingit guides.

The visitor center is on the second floor of Glacier Bay Lodge at 179 Bartlett Cove Road in Gustavus, just 10 miles from the airport on a paved road.

Check out the underwater hydrophone that lets you hear whale sounds, and join daily evening ranger programs with educational videos.

This article was created with AI assistance and human editing.

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