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Author: Duane Haselfeld 3187 Red Hill Ave.
ve. Phone: 714-751-7373 Psomas is a mid-sized survey and engineering firm providing GIS and environmental services to a diverse spectrum of private and municipal clients. Obtaining low-cost, spatially accurate digital basemap data is often a critical first step in the development of GIS services and applications. Although a variety of low-cost data sources exist, USGS digital sources have proven to be unparalleled in their level of accuracy, detail, and accessibility. This paper introduces the vector and raster basemap data available from the USGS and discusses their potential uses and applications. |
