1976. 2018-05-09T17:56:09Z. 2018-05-09T17:56:09Z. Englund, Evan John. New Hampshire Department of Resources and Economic Development. English. cartographic image. Public. New Hampshire, Belknap County, Grafton County, Merrimack County, Connecticut River Valley, Belknap County., Grafton County., Merrimack County., United States, and Connecticut River Valley.