Meadowcroft Rockshelter is an archaeological site located near Avella in Jefferson Township, Washington County, Pennsylvania, United States. The site, a rock shelter in a bluff overlooking Cross Creek, is located 27 miles west-southwest of Pittsburgh in the Pittsburgh metropolitan area. In the 21st century, the site has a museum and a reconstruction of a circa 1570s Monongahela Culture Indian village. It operates as a division of the Heinz History Center of Pittsburgh. The artifacts from the site show the area may have been continually inhabited for more than 19,000 years, since Paleo-Indian times.