Newburyport

Despite the name, the historic mine matching this location and specimen list — the Chipman Mine, also called the Merrimac Mine or the "Newburyport lead-silver mine" — actually sits in the neighboring town of Newbury, Essex County, Massachusetts, not within Newburyport itself.[1] It's a well-documented 19th-century silver-lead operation: the mineralized vein was discovered in 1874, worked through 1879, then reopened from 1919 to 1925 before closing for good.[1] Argentiferous galena (silver-bearing lead ore) was the main product, with pyrite, siderite, and bournonite also documented from the mine dumps.[1] The DB's specimen list (chalcopyrite, galena, pyrite, sphalerite, siderite, tetrahedrite) lines up closely with this deposit. Current land status and public access are unverified — this reads as old, likely private, New England farmland/woodland.

The mine site is in the town of Newbury (not Newburyport), Essex County, Massachusetts. No current road access, trailhead, or parking information is documented.

UNVERIFIED. If dump material remains accessible, standard old-mine-dump collecting would apply — surface picking and light hand-tool work, no digging equipment needed. Old mine workings from a site active into the 1920s may have hazardous open shafts; treat any such feature as off-limits to enter.

Land status is unverified — nothing found confirms current ownership or whether this is open land, private woodlot, or otherwise restricted. The mine has been closed since 1925 with no indication of any current operator or public program. Confirm current property status with the Town of Newbury before attempting to visit.