1. Availability of ground water in the lower Merrimack River basin, southern New Hampshire Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Concord, New Hampshire : Department of the Interior, United States Geological Survey, 1977 Resource Type: Map Access & Availability: Loading
2. Availability of ground water in the middle Merrimack River Basin, central and southern New Hampshire Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Concord, New Hampshire : Department of the Interior, United States Geological Survey, 1976 Resource Type: Map Access & Availability: Loading