Where: New Hampshire · approx. 42.77, -71.47 (vicinity only)
Why this spot: 1880s+ Sanborn-mapped town on Merrimack River at the Nashua River confluence
What turns up: Cotton-mill city dumps: aqua and amber bottles, local soda and druggist bottles, ironstone and stoneware sherds, clay pipes, and buttons and coins in privy pits behind tenement blocks along the Nashua River canals and Main Street.
Access: Gray area.
New Hampshire framing: the beds of the navigable Merrimack and Nashua Rivers below the ordinary high-water mark are state-owned and removing historic artifacts there is restricted. Mill-yard and canal-side uplands are private and need the owner's permission. State law protects archaeological sites and unmarked burials.
Open in Mudlark Map →
Satellite view, historic-map overlays, tide/flow context and field notes are in the app. Exact research detail is part of Pro.
Pins are approximate by design. This page is historical research, not permission to dig. Check ownership and local law first.