This code compiles and maps data on closed and active landfills in the USA, Northeast / Mid-Atlantic region. It is based on the US EPA's LMOP Landfill and Project Database as accessed in July 2021. It was used to create the following map and figure that appeared in:
Allen, M. C. (2021). Landfills as islands of grassland biodiversity: placing a next-generation habitat restoration plan in context. Ecological Restoration, 39:284-287.
