Hydrological Unit: Merrimack
| HUC | Name |
|---|---|
| 01070001 | Pemigewasset |
| 01070002 | Winnipesaukee River |
| 01070003 | Contoocook |
| 01070004 | Nashua |
| 01070005 | Concord |
| 01070006 | Merrimack River |
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- New to WDFN: explore current and historic water data available in your area of interest and filter to find monitoring locations that collect the water data you need through Explore USGS Water Data. To learn more, read our announcement on the Water Data for the Nation blog.