The City of Pittsburgh maintains a list of vacant lots for sale and offers an online map viewer with data layers including public amenities, demographics, and environmental layers such as floodplains, landslide prone areas, and greenways [20,21]. This map does not include the vacant lots, one major source of marginal land in urban areas. The Pittsburgh Neighborhood and Community Information System (PNCIS), based at the University of Pittsburgh, provides an online property information system for community development initiatives and includes vacant lots [22]. The PNCIS also includes greenways, woodlands, and multiple layers of demographic data. PNCIS does not provide data on soil quality, land slope, or farmland classification. While PNCIS does partner with the City of Pittsburgh, differing data availability at each source highlights the site-identification challenge facing organizations attempting to revitalize marginal properties and also highlights the need for increased agency collaboration.