Extent of available data.
This data layer is the 1991 Statewide Spring Orthophotography. It originated from the US Geological Survey, has a 1 meter resolution, and is in black and white. Orthophotography is extremely useful for determining land use and land cover. As a result, it can provide important context for specific locations and other spatial data. If multiple years are available, it can also be used to identify changes that take place on the landscape.