This layer was derived from a 30 meter DEM and cell resolution is held at 30 meters. For general use by Yellowstone National Park researchers and staff. The 30 meter DEM used to create this layer was resampled from a 10 meter DEM which greatly improves the accuracy of the features. This layer is complete for Yellowstone National Park. Check the source citation for the list of quads that make up the grid.
Spatial fidelity varies depending on the source of individual components within the data.
Data derived from USGS data Digital Elevation Models are assumed to meet National Map Accuracy standards, though extensive experience in using USGS data for Yellowstone National Park area has shown that many data components have spatial errors exceeding the National Map Accuracy standards. Contact ESRI or read their literature for detailed descriptions of their internal file structure. The information contained in these data is dynamic and may change over time. The data are not better than the original sources from which they were derived. It is the responsibility of the data user to use the data appropriately and consistent within the limitations of geospatial data in general and these data in particular.