103 documented stops along the Ice Age Floods National Geologic Trail, from Glacial Lake Missoula in western Montana to the Pacific Ocean, integrating IAFI scholarship with immersive 360° field capture.
The largest waterfall that ever existed, fully interpreted: narrative, layered 360°, a drone reveal, and a then-and-now reconstruction you can drag.
Walk the site →President Theodore Roosevelt established the Bison Range in 1908 to conserve the American...
Scattered across the Bitterroot Valley floor are glacial erratics -- boulders that floated on...
The largest current ripple marks on Earth stretch across Camas Prairie in western Montana, with...
Every drop of water in Glacial Lake Missoula -- 500 cubic miles of it -- had to funnel through...
An 8-ton glacial erratic that spent 13,000 years on a Bitterroot Valley ranch has been...
At its peak, Glacial Lake Missoula held 500 cubic miles of water -- as much as Lake Erie and...
Along the Flathead River in Montana, side gulches and tributary valleys contain mounds of soil,...
The hillsides of Mount Sentinel and Mount Jumbo flanking downtown Missoula are striped with...
The Montana Natural History Center in Missoula sits in the heart of what was once Glacial Lake...
Rainbow Lake is a 1.5-mile-long lake along Montana Highway 200 that fills a channel scoured by...
The old Paradise Elementary School in this tiny railroad community at the confluence of the...
Thompson Falls State Recreation Area in northwestern Montana occupies a site that lay beneath...
Travelers' Rest State Park near Lolo, Montana, is the only archaeologically verified Lewis and...
Standing 733 feet above the Columbia River at Crown Point, you are looking at a flood scar of...
Six miles west of McMinnville, Oregon, a 90-ton boulder of banded argillite sits on a gentle...
Mount Pisgah overlooks the southernmost reach of the Missoula Floods in the Willamette Valley,...
OMSI sits on the banks of the Willamette River in Portland on ground that was beneath hundreds...
Portland Women's Forum State Scenic Viewpoint offers one of the most photographed panoramas of...
Rocky Butte in northeast Portland is the eroded core of a Boring Lava Field volcano that became...
In the quiet Portland suburb of Tualatin, glacial erratics from the Missoula Floods share...
The Tualatin Ice Age Walking Trail is a self-guided tour through the suburban streets of...
The Tualatin Public Library, just off Interstate 5 in suburban Oregon, is home to an...
Near the southernmost extent of the Missoula Floods in the Willamette Valley, the University of...
This National Natural Landmark preserves something the Missoula Floods created by accident: one...
From the top of the 125-foot Astoria Column on Coxcomb Hill, you look out across the mouth of...
During the Ice Age Floods, Badger Mountain near Richland, Washington, was an island poking...
The second-largest freestanding monolith in the United States, Beacon Rock towers 848 feet...
Bonneville Dam, completed in 1938 as the first federal dam on the Columbia River, would have...
During the last ice age, the land at Bridgeport State Park lay buried beneath the advancing and...
A man-made irrigation ditch near Walla Walla accidentally exposed one of the most...
Cabinet Gorge Dam on the Clark Fork River sits near the single most consequential location in...
Despite its name, Cape Disappointment State Park is anything but disappointing. This 2,023-acre...
The Chinook Scenic Byway winds through the Mt. Baker-Snoqualmie National Forest and Mount...
This is where the Ice Age Floods began: the site near Clark Fork, Idaho, where the Purcell...
The Columbia Gorge Discovery Center in The Dalles, Oregon, occupies a 54-acre point of land at...
Located in the heart of the Columbia River Gorge National Scenic Area near Stevenson,...
At Horsethief Butte, the raw power of the Missoula Floods is written directly on the rock face...
Stretching 130 miles along an abandoned railroad grade, the Columbia Plateau Trail is the...
The southern terminus of the Columbia Plateau Trail near Pasco brings travelers to the...
The Corfu Slide is one of the largest landslide complexes in Washington state, a massive slump...
In the Horse Heaven Hills near Kennewick, Washington, an active paleontological excavation is...
Daroga State Park sits on a terrace along the Columbia River that was built and shaped by the...
Above the tranquil surface of Deep Lake, massive potholes bored into solid basalt testify to...
The Drumheller Channels are the most spectacular example of 'butte-and-basin' scabland terrain...
The Ephrata Erratics Fan is one of the most remarkable depositional features of the Missoula...
The 3.2-mile Escure Ranch trail leads to Towell Falls in the heart of the Cheney-Palouse...
Farragut State Park marks ground zero for the Missoula Floods -- the exact spot where the ice...
Fort Spokane sits above the confluence of the Spokane and Columbia Rivers, a gathering place...
Frenchman Coulee is one of the most dramatic and accessible flood-carved canyons in the...
Two geological dramas separated by 15 million years collide at Ginkgo Petrified Forest: an...
This viewpoint along Idaho State Route 200, about one mile west of Hope, Idaho, offers a direct...
Fifty miles long, up to 900 feet deep, and as much as five miles wide, the Grand Coulee is the...
The largest hydroelectric facility in the United States sits almost exactly where the Okanogan...
Green Monarch Ridge near Clark Fork, Idaho, marks one of the key locations where the...
Lewis and Clark saw Hat Rock in 1805 and noted its striking resemblance to a man's hat -- a...
Hells Gate State Recreation Area near Lewiston, Idaho, marks the farthest point upstream that...
Hole in the Ground Canyon between Bonnie Lake and Rock Lake is a textbook example of a cataract...
Lacamas Lake near Camas, Washington, was bored into the landscape by kolks -- spinning...
Lake Pend Oreille is the largest lake in Idaho -- 43 miles long, over 1,150 feet deep, and...
Tucked into the basalt walls of the lower Grand Coulee, the Lake Lenore Caves were literally...
Perched on a cliff 200 feet above the pounding Pacific surf at Cape Disappointment, the Lewis...
Named for a basalt formation said to resemble Abraham Lincoln's profile, Lincoln Rock State...
Where the Palouse River meets the Snake River, Lyons Ferry State Park occupies one of the most...
The broad bench on which Maryhill State Park sits was carved by the Missoula Floods as they...
The McBones dig site near Kennewick, Washington, is where the Ice Age Floods meet the Ice Age...
From the summit of Mount Spokane, at 5,883 feet the highest point in Spokane County, you look...
Oregon's tallest waterfall at 620 feet exists in large part because the Ice Age Floods...
The Museum of North Idaho in Coeur d'Alene occupies a spot that would have been one of the...
Northern Idaho is where the Ice Age Floods were born, and this collection of features scattered...
Washington's official state waterfall plunges 198 feet into a churning basalt bowl that has...
This quiet confluence of two rivers hides one of the most startling discoveries in geological...
This site commemorates the research of Dr. Ralph Haugerud and other scientists investigating...
Massive columns of basalt up to 100 feet tall stand like ruined pillars of an ancient temple...
The potholes that give this reservoir its name are not gentle depressions but violent...
Although the Seattle region was not hit by the Missoula Floods that carved the scablands to the...
The giant basalt boulders scattered through the Spokane River at Riverside State Park's famous...
Nearly 700 feet above the Columbia River, Rowena Crest is a scenic overlook that doubles as a...
At the confluence of the Snake and Columbia Rivers near Pasco, Sacajawea State Park occupies a...
When the Missoula Floods slammed into the eastern flank of the Saddle Mountains, they split...
Sentinel Gap is where the Columbia River punches through the Saddle Mountains in a dramatic...
The Waterville Plateau near Sims Corner is an open-air museum of glacial landforms, preserving...
The Spokane River Centennial Trail traces a corridor that experienced some of the most violent...
At Spring Creek Hatchery in the Columbia Gorge, the Missoula Floods reached an estimated 900...
Rising 800 feet above the waters of Banks Lake like the prow of a colossal ship, Steamboat Rock...
Rising 3,612 feet above the rolling wheat fields of the Palouse, Steptoe Butte is a quartzite...
Summer Falls is a living waterfall born from the Ice Age Floods, cascading over basalt ledges...
Sylvan Lake in eastern Washington is an outdoor classroom for Ice Age Floods evidence, hosting...
The Tamastslikt Cultural Institute near Pendleton, Oregon, stands just east of the farthest...
Before J Harlen Bretz had satellites or drones, he had a notebook and a pair of boots. The...
At the time of one of the earliest Missoula Flood releases, the Okanogan Lobe of the...
The REACH Museum in Richland, Washington, sits on land that would have been beneath hundreds of...
Tucked into the scablands near Cheney, Washington, Turnbull National Wildlife Refuge is a...
The Umatilla National Wildlife Refuge stretches along a section of the Columbia River that was...
The Priest Rapids Bar is one of the most massive Ice Age Floods gravel bars in existence -- a...
Every drop of floodwater from the largest deluge in North American history had to squeeze...
The Wanapum Vista Pullout offers sweeping views of Frenchman Gap -- a water gap carved through...
Where the Wenatchee River meets the Columbia, Wenatchee Confluence State Park preserves a...
The Wenatchee Valley Museum and Cultural Center preserves the history, arts, and sciences of...
Imagine ocean waves frozen in gravel and stone, each one taller than a two-story building. The...
The White Bluffs tower up to 560 feet above the Columbia River like chalk cliffs transplanted...
A crescent-shaped ridge of glacial debris stretching across the Waterville Plateau marks the...
This quiet oasis of wetlands and shady campgrounds in the arid Yakima Valley sits at what was...