The Spiller Farm Paleoindian Site in Wells, Maine preserves evidence of human activity from about 8,000 BCE on a 60-acre property near a tributary of the Merriland River. Discovered in 1995 and excavated over several seasons, it yielded nearly 300 stone tools and at least two hearths, indicating repeated use during the Paleoindian period. Most of the tools were made from chert brought from central Maine, while other stone came from New Hampshire and probably Atlantic Canada, showing patterns of movement and material use. Listed on the National Register of Historic Places in 2003, it is an important early record of human presence in southern Maine.