60 Fun Facts About Mount Rainier National Park

Mount Rainier is the highest peak of which mountain range?

The range runs from British Columbia to northern California and includes Mount St. Helens, Rainier's most explosive neighbour.

By what other name, from Indigenous languages, is Mount Rainier widely known?

A 2025 linguistic study counted 20 Indigenous names for the mountain, and the anglicized forms also gave a nearby Puget Sound city its name.

Mount Rainier National Park lies in which U.S. state?

The park sits about 59 miles south-southeast of Seattle, close enough that locals just call the peak 'the Mountain'.

In what year was Mount Rainier National Park established?

It took over five years and six different bills to get through Congress, which only agreed once assured the land was useless for farming or mining.

Which president signed the bill that created Mount Rainier National Park?

Roosevelt, the president most associated with conservation, did not take office until 1901.

Mount Rainier is what kind of volcano?

Its layered cone is built mostly of andesite lava flows and debris, and the present cone is more than 500,000 years old.

What summit elevation do the National Park Service and USGS officially cite for Mount Rainier?

Recent surveys suggest the Columbia Crest icecap has melted enough that a bare-rock point on the southwest crater rim may now be the true high point.

Mount Rainier's name in the Lushootseed language is shared with which nearby city?

Lushootseed speakers also call it xʷaq̓ʷ, meaning 'sky wiper' or 'one who touches the sky'.

Which explorer named Mount Rainier after his friend, Rear Admiral Peter Rainier?

The naming happened on May 8, 1792, the day after Vancouver's crew made the first documented European sighting of the peak.

The map from the Lewis and Clark expedition labels the mountain with which name?

The expedition first observed the mountain in early 1806, and the spelling drifted from Vancouver's original.

What year did the U.S. Board on Geographic Names rule the mountain would be called Rainier?

The fight was not over: Congress was still considering a resolution to change the name as late as 1924.

Which glacier on Mount Rainier is the largest by volume in the contiguous United States?

It is also one of the lowest-reaching glaciers in the lower 48, ending in the park's only rainforest in the northwest corner.

Which Rainier glacier is the largest by surface area in the contiguous United States?

It drapes the northeast flank above the White River and carries the second most popular summit route via Camp Schurman.

Which trail makes a complete loop around Mount Rainier?

Only an estimated 200 to 250 people finish the whole loop each year, typically taking 10 to 14 days.

Roughly how long is the trail that circles Mount Rainier?

It climbs and drops constantly over the mountain's ridges for a cumulative gain of about 22,000 feet.

In what year was the loop trail around Mount Rainier built?

It was designated a National Recreation Trail in 1981, and its 18 trailside camps sit 3 to 7 miles apart.

What is the highest point on the loop trail that circles Mount Rainier?

In many years the trail is still mostly buried in snow through June and early July.

Roughly what share of the climbers who attempt Mount Rainier's summit each year actually reach it?

Weather and the climber's physical conditioning are the most common reasons for turning back on the two-to-three-day climb.

Which area does the National Park Service call 'the snowiest place on Earth where snowfall is measured'?

At about 5,400 feet on the south slope, it averages roughly 640 inches of snow a year, and the snowpack often lingers in the meadows into July.

How much snow fell at the park's snowiest station in the record 1971-72 season?

That is 1,122 inches, and it stood as the world record for a measured season until the winter of 1998-99.

Which ski area broke the park's seasonal snowfall record in the 1998-99 winter?

The park's snow station still holds the Cascade Range record for snow on the ground: 30.583 feet on March 10, 1956.

In what year was the park's grand timber hotel at 5,400 feet on Rainier's south slope built?

It opened on July 1, 1917, having cost between $90,000 and $100,000, and was declared a National Historic Landmark in 1987.

What roof colour did the Park Service insist on for a 1916 south-slope park inn, rejecting the planned red?

The inn was framed with weathered cedar timbers salvaged from an 1885 fire that had aged for 30 years to a silver sheen.

Which architect designed the park's famous 1916 timber inn on the south slope of the mountain?

It was originally planned for Longmire; the site moved up the mountain after the original financier backed out.

Descending from the summit in 1883, James Longmire discovered what at the site that now bears his name?

A 1924 park publication counted some forty distinct springs there, all highly carbonated and 'extremely hard'.

Which lodging is the only one at Mount Rainier open all year round?

It sits at Longmire, 6.5 miles inside the Nisqually Entrance among old-growth Douglas fir, red cedar and hemlock.

Which developed area is the highest point in the park you can reach by vehicle?

Trails to Mount Fremont, Burroughs Mountain and Sourdough Ridge fan out from the lodge, reached by a 10-mile turnoff from State Route 410.

Which is the only developed area in the park without a view of Mount Rainier?

It compensates with hot springs, Silver Falls and the Grove of the Patriarchs, all in the park's southeast corner.

The park's only rainforest is found near which entrance?

The road beyond the entrance washed out in the 2006 floods and has stayed closed to cars ever since.

What is the largest and deepest lake in Mount Rainier National Park?

It is also a common starting point for the loop trail around the mountain and the high alternative route through Spray Park.

In 1936 the park began a 'sister mountain' relationship with a Japanese park around which peak?

Japanese American immigrants around Seattle had long given Rainier a nickname pairing it with Fuji for its resemblance to the volcano back home.

Kenneth Arnold's 1947 report of nine strange objects over Mount Rainier gave the language which term?

Arnold was a private pilot; his sighting kicked off the modern UFO era a few weeks before the Roswell incident.

The 2007 state quarter that shows Mount Rainier pairs it with which animal?

Chinook, coho and pink salmon still spawn in rivers on the park's edge, though the mountain itself was better known on the 1934 3-cent national parks stamp.

Which massive mudflow from Mount Rainier's summit collapse ~5,000 years ago reached present-day south Seattle?

The event sheared roughly 1,600 feet off the mountain, which had likely stood around 16,000 feet before the collapse.

Mount Rainier is on the Decade Volcano list of how many volcanoes judged most likely to cause loss of life?

The USGS estimates about 150,000 people live on old lahar deposits from the mountain, which is why the county downstream runs lahar sirens and school evacuation drills.

Who joined Hazard Stevens on the first documented ascent of Mount Rainier in 1870?

Van Trump was still guiding two decades later, joining John Muir's 1888 climb and the first female ascent in 1890.

Who made the first female ascent of Mount Rainier, in 1890?

Fuller was a schoolteacher and journalist from the city below the mountain who later helped found a state alpine club.

In 1899 Mount Rainier became the first park of its kind carved out of what type of federal reserve?

John Muir persuaded the newly formed Sierra Club to back the campaign, and the Northern Pacific Railway and Puget Sound business leaders joined in.

What is the name of the standard summit route on Mount Rainier, used by most guided climbs?

A cleaver is a rock rib separating two glaciers; nobody recorded why this one disappointed, though exhausted climbers turning back there is the usual guess.

Roughly 90 percent of summit attempts on Mount Rainier start from which high camp on the southeast flank?

Camp Schurman, at 9,500 feet on the northeast route, has the mountain's other ranger hut and a solar toilet.

The Liberty Ridge route, one of the Fifty Classic Climbs, ascends which aspect of Mount Rainier?

It draws only about 2 percent of climbers but accounts for roughly a quarter of the mountain's climbing deaths.

Which of these is one of Mount Rainier's three named summits, alongside Columbia Crest and Liberty Cap?

With only about 138 feet of prominence it does not count as a separate peak, unlike the eroded remnant peak on the east flank.

If counted separately, the 11,138-foot remnant peak on Rainier's east flank would rank where among Washington's peaks?

The peak is a leftover of the older, much taller ancestral volcano that stood before the summit collapsed.

How is the crater lake under 100-plus feet of ice in Rainier's west crater reached?

Geothermal heat has carved the world's largest volcanic glacier cave network inside the summit craters, with nearly two miles of passages.

A November 2006 'Pineapple Express' storm closed the park for six months after how much rain fell in 36 hours?

Roads and campsites washed away across the park, and cars were not allowed back in until May 5, 2007.

Which campground just inside the Nisqually Entrance was destroyed by the 2006 floods and never reopened?

The same floods cut the road into the park's northwest corner, which has been closed to vehicles ever since.

The entire park became a National Historic Landmark in 1997 as a showcase of which style?

The park holds 42 places on the National Register of Historic Places, four of them National Historic Landmarks in their own right.

Roughly what percentage of Mount Rainier National Park is designated wilderness?

It is bordered by the Tatoosh, Clearwater, Glacier View and William O. Douglas Wildernesses.

Among peaks in the contiguous United States, Mount Rainier holds which distinction?

Its prominence is 13,210 feet, which is why it can be seen from Marys Peak in Oregon and from British Columbia on very clear days.

Which river from Rainier's south-east glaciers joins the Columbia between Kelso and Longview?

The White River and its neighbours instead feed the Puyallup, which reaches Puget Sound at Commencement Bay.

Which company was Mount Rainier's sole authorized guide service from 1967 to 1997?

As of 2024 three companies hold year-round guiding permits, plus 15 single-trip operators.

Which endemic plant, found nowhere else, is named for the mountain?

The park counts more than 960 vascular plant species across a 12,800-foot elevation range, and its July-August wildflower bloom is world famous.

Which native mammal, hunted to local extinction, has been reintroduced on Mount Rainier?

The mountain is home to 65 mammal species, 182 birds, 14 amphibians and 14 native fish.

Which county took over the lahar warning system the USGS built for Rainier in 1998?

The 2024 evacuation drill moved 45,000 students and staff from the Puyallup, Sumner-Bonney Lake, Orting, White River and Carbonado school districts.

Which name did NPS scientists strike from Rainier's official glacier list after it stopped moving?

Satellite work in 2022 concluded the Pyramid and Van Trump glaciers had effectively vanished too.

Mount Rainier was which number national park to be established in the United States?

It was created on March 2, 1899, preserving 236,381 acres that span southeast Pierce and northeast Lewis counties.

Roughly what total area do Mount Rainier's glaciers and snowfields cover?

Carbon Glacier is the largest by volume in the lower 48 and Emmons the largest by area.

In which year was Mount Rainier Wilderness designated, covering nearly all of the park?

Ninety-seven percent of the park is wilderness, abutted by the Tatoosh, Clearwater, Glacier View and William O. Douglas Wildernesses.

A 1963 study found prehistoric people used the Rainier area most heavily in which period?

Richard D. Daugherty led the Washington State University study, while Allan H. Smith interviewed elderly Native Americans about the mountain.

What share of the park's 1.6 million yearly visitors come between July and September?

The reservations apply to vehicles on the Paradise and Sunrise corridors during daylight hours in peak summer.