Keywords: Basin, The Basin, Franconia, Franconia Notch, Pemigewasset, Pemigewasset Rviver, Cascade, Flow, Franconia, Franconia Notch, Granite, New Hampshire, Notch, Pool, Pothole, River, Rock, Water, Waterfall
Description: At the base of the beautiful waterfall at this site is a granite pothole 20 feet in diameter. It is believed to have been eroded 15,000 years ago while the North American ice sheet was melting. The Basin has been smoothed by small stones and sand, whirled around by the Pemigewasset River.
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