Plantation Plenty, also known as the Isaac Manchester House, is an historic American building which is located in Avella, Pennsylvania.

It was designated as a historic residential landmark/farmstead by the Washington County History & Landmarks Foundation,[2] and was listed on the National Register of Historic Places in 1975,[1] with a boundary enlargement and renaming undertaken in 2016.

[3] The property is endangered by longwall coal mining.

[4] In 2011, it was named to the list of America's Most Endangered Places by the National Trust for Historic Preservation.

[5][6][7]