Dry Falls megaflood cataract dwarfs Niagara in scale

September 14, 2026General

Source: Niagara, Watkins Glen & the Flood That Buried North America by The Randall Carlson

Site mentioned

📍 Dry Falls

Dry Falls in Washington is a massive cataract complex spanning roughly 3.5 miles across — that's 2.5 times the height of Niagara Falls. A prior flood event in Nepal was measured at just 1,600th the size of the Dry Falls megaflood. The scale of ancient Ice Age flooding in the Pacific Northwest is almost incomprehensible. 🌊

Key facts

Dry Falls is 2.5 times the height of Niagara Falls
Dry Falls cataract complex spans approximately 5 miles across
Niagara Falls total width is 4,070 ft across Horseshoe, American, and Bridal Veil Falls (~3/4 mile)
Niagara's average flow rate is approximately 85,000 cubic feet per second; peak can reach 2,800 cubic meters per second
The Nepali flood event measured on a prior trip was 1,600th the size of the Dry Falls flood

Sources

Dry Fallsen.wikipedia.org

Dry Falls is a 3.5-mile-long (5.6 km) scalloped precipice with four major alcoves, in central Washington scablands. This cataract complex is on the opposite ...

Dry Falls | Grant County, WAgrantcountywa.gov

Viewing the 3.5 miles of sheer cliffs that drop 400 feet, it is easy to imagine the roar of water pouring over them. (Niagara Falls by comparison, is one mile ...

Dry Falls Visitor Center - Washington State Parks - WA.govparks.wa.gov

Dry Falls, the main feature in a series of huge cataracts known as the “great cataract group”, sits at the heart of Washington's Channeled Scabland, ...

Dry Falls Interpretive Center in Coulee City, WAterrain360.com

The Dry Falls Interpretive Center trail is a short 0.27-kilometer accessible pathway at 484.5 meters elevation in Coulee City, Washington, offering spectacular ...

Dry Falls internationally recognized as scientifically significant ...parks.wa.gov

The dry 400-foot-high, 3.5-mile-wide remnants of this ice age waterfall make up one of the largest cataracts on the planet. The area was first ...

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