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West Yellowstone in Gallatin County, Montana — The American West (Mountains)
 

Something is terribly wrong

 
 
Something is terribly wrong Marker image. Click for full size.
By Martin Schrattenholzer, August 27, 2017
1. Something is terribly wrong Marker
Inscription. Something is Terribly Wrong

Fourteen-year-old Darwin Steffler was in bed in his family’s lakeside lodge about 5.5 miles east of here, when he felt the earthquake strike. After checking on his little brothers, he race through the darkened house to the front window. Through the dust and moonlight, he saw the lake dropping; water was gushing across the breakwater of the lodge’s marina. “Hebgen dam must have broken, and the lake is draining,” he thought.

One of the lodge’s brand-new boats had come loose and was drifting. Darwin ran down to the lake edge and waded out to grab it. But as he walked it back to shore, the water began to rise swiftly, and soon he was swimming for his life. When he reached the shore, he tried to make sense of the strange behavior of the lake.

The Entire Lake Bottom Tilted

The bizarre water-level change Darwin Steffler had witnessed was a tsunami-like wave, called a seiche (pronounced “saysh”), caused by the sudden tilting of the land under and around the lakebed.

These waves of destruction wreaked havoc on lakeshore buildings and roads already damaged by the earthquake. Here at Hilgard Lodge, you can still see the results: along the shore there are the remnants of two cabins wrenched off their footings and soaked by the slow, relentless waves. A walk along the road will reveal a gaping scar in the hillside where the highway once ran.

When the ground dropped along the Hebgen Lake Fault, water was displace from the south shore to the north shore - an effect that made it feel like the lake had tilted. Land was lost along the north shore of Hebgen Lake, and land was gained along the south shore of Hebgen Lake.

[the two drawn illustrations have the following captions]

Seiches
Like water in a tilted pan, the lake sloshed slowly back and forth several times, alternately swallowing and exposing area along the shoreline.

Lake Tilt
After the earthquake, cabin owners found that their cabins more than 500 yards from the lake shore due to the tilting of the land beneath the lake. Canals were dug through the uplifted land to provide access for boats.

[quote]
It sounded like a freight train rumbling down the tracks starting far away then building to a crescendo and thats when I could feel the ground start to shake.
Darwin Steffler earthquake survivor

[caption for photo with buildings]

Take a path to the remnants of Hilgard Lodge

[between photos]

A Lake Transformed
Even after the seiches had settled, the lake was still playing tricks. Here along the northwest arm, beaches, docks, and roads were flooded by the new, higher lake level. On the southern shore, docks and boats were left permanently high and dry, and many homes that had once been lakeside were now far from the water. The tilt also increased the lake’s storage capacity by 2.6 billion gallons-the equivalent of 6,640 Olympic-sized swimming pools.

[caption over second photo]
Continue down the road to see remnants of the broken highway.

 
Location. 44° 51.365′ N, 111° 19.517′ W. Marker is in West Yellowstone, Montana, in Gallatin County. Marker can be reached from Hebgen Lake Road (U.S. 287) 12 miles west of U.S. 191. Touch for map. Marker is in this post office area: West Yellowstone MT 59758, United States of America.
 
Other nearby markers. At least 8 other markers are within 9 miles of this marker, measured as the crow flies. The Lake that Tilted (a few steps from this marker); A Leap Just in Time (about 500 feet away, measured in a direct line); Sleep Interrupted (approx. ¼ mile away); The Night the Earth Cracked (approx. 1.4 miles away); The Night’s Peace Was Shattered (approx. 7.6 miles away); Earthquake Lake Geologic Area (approx. 7.6 miles away); Geologists' Dream (approx. 7.6 miles away); Hebgen Lake and Quake Lake (approx. 8.6 miles away). Touch for a list and map of all markers in West Yellowstone.
 
More about this marker. There is a second sign right next to it, which can be seen in the photo
 
Categories. Disasters

 
 
Credits. This page was last revised on February 18, 2018. This page originally submitted on February 17, 2018, by Martin Schrattenholzer of Renton, Washington. This page has been viewed 87 times since then. Photo   1. submitted on February 17, 2018, by Martin Schrattenholzer of Renton, Washington. • Andrew Ruppenstein was the editor who published this page.
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