What Is an Ice-Walled Lake Plain ?
Ice-walled-lake plains form in the stagnant marginal zone of glacial Ice Sheets. They are conspicuous, but little-known, landforms within the broad bands of hummocky glacial topography extending from the Great Lakes to Alberta. They are flat-topped hills up to 50 m high and up to a few kilometers wide. Laminated offshore sediment up to tens of meters thick underlies the middle part of many of these features, and coarser shore sediment are typically present around their edges. These lake plains provide evidence of the final disintegration of the ice and the distribution of debris from the melting ice.
We stopped by the Washington County Offices to apply for our Septic Permit. Apparently our land was recently identified as part of an ice-walled-lake (known officially as Lake LeClair).
Might find a prehistoric Northern Pike in our backyard...... Or an ancient Rapala.....
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