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Learn MoreMaryland Archaeological Conservation Laboratory: The Maryland Archaeological Conservation Laboratory (MAC Lab) is a archaeological research, conservation and curation facility located at Jefferson Patterson Park & Museum, the State Museum of Archaeology, in southern Maryland. The MAC Lab serves as a clearinghouse for archaeological collections recovered from projects conducted throughout Maryland, as well as collections from private donations (http://www.jefpat.org/mac_lab.html). The digital records for the MAC Lab's collections are available here and are organized according to contributing installation. They are further organised by MAC Lab accession number and/or by archaeological site.