The Life of a Lake
Posted by: Groundspeak Premium Member Volcanoguy
N 44° 24.054 W 122° 00.256
10T E 579292 N 4916883
Sign about the geology of Fish Lake.
Waymark Code: WM4R8B
Location: Oregon, United States
Date Posted: 09/22/2008
Published By:Groundspeak Premium Member TheBeanTeam
Views: 17

This sign is located at the Fish Lake Viewpoint off Ore Hwy 126.

Marker Name: The Life of a Lake
Marker Text: You are standing on the shore of a lake that may seem old but in geologic terms was formed yesterday. Fish lake continues to change, seasonally and through the decades
Around three thousand years ago an eruption of Nash Crater formed Fish Lake by damming Hackleman Creek. Seasonal rains and snow overwhelm this little valley’s ability to drain the inflow so that each winter a lake is formed. In the summer, after the last snow melts off the ridges overlooking the valley, the lake quickly disappears and Hackleman Creek vanishes into the lava lakebed.
Grasses that have adapted to the seasonal drying of Fish Lake quickly transform the lake into a lush meadow. The local Hackleman trout population has adapted to this seasonal disappearance of their lake home. When the temperature of the lake starts to rise, the trout head upstream into the creek where they wait for the arrival of winter and the lake’s return.

Historic Topic: Geological

Group Responsible for placement: Forest Service

Marker Type: Roadside

Region: Willamette Valley

County: Linn

State of Oregon Historical Marker "Beaver Board": Not listed

Web link to additional information: Not listed

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Recent Visits/Logs:
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Sage Rat 5 visited The Life of a Lake 07/03/2013 Sage Rat 5 visited it
Volcanoguy visited The Life of a Lake 09/25/2008 Volcanoguy visited it

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