Embedded Files
Cartographic map products are open and free to use for students and faculty in research and projects
**All maps are free to use, but please provide appropriate acknowledgement or credit including both the map author, Chris Shaffer, GIS Manager/Instructor, Environmental Science and Sustainability Department, Allegheny College, 2025, and the data sources used which are stated on the maps themselves.
ROBERTSON FIELD COMPLEX (RAC)
Map depicting just over 7.0 km (4.3 miles) of hiking trails as they cross through the wooded areas of the complex. The trails are symbolized by surface material and labeled trail segment distances are in meters (m). Those segments less than 25 m are not labeled. Note that this map is currently INCOMPLETE. The data is expected to be field checked during mid to late summer 2025.
This landcover dataset is based on 0.6x0.6 meter resolution aerial imagery captured in the summer of 2022. A GeoAI deep learning model was used to convert the multispectral data into thematic classes. According to documentation, the model has an overall accuracy of 86.5%. It is intended for use in the Chesapeake Bay watershed, but is acceptable for use here due to similar landcover compositions.
Map depicting orthoimagery captured in Spring 2022 (leaf-off), while no snow was on the ground and rivers were at or below normal levels, by NV5 Geospatial, a contractor for the Pennsylvania Emergency Management Agency. Pixel resolution if 0.5 feet and reflectance for four (4) wavelengths were collected; visible red (band 1), green (band 2), and blue (band 3) and infrared (band 4). To achieve a false color infrared composite image, utilize the following wavelength/color gun combination: Red (infrared - band 4), Green (red visible - band 1), Blue (green visible - band 2).
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