Esri Arcview

[Vanya Lamunyon]

UnfortunatelyI don't believe ArcGIS Pro directly works with APR files. You can migrate APR contents into ArcGIS Desktop (see -arcview-3-project-to-arcgis/), and then import those MXDs into ArcGIS Pro, but it is a cumbersome process.

Geographic information system format. The digital geologic maps have been prepared for use in geographic information systems (GIS). The geologic features are rendered in "vector" format to permit scale variation without degrading quality. You should be aware, though, that the original data were compiled at a scale of 1:24,000, and uses at larger scales are not advised. Features are stored as one of three shapes: points, lines, or areas (polygons). Geometry type is indicated with the description of each theme below.

Computer file format. These data are supplied in ESRI shapefile format. Each shapefile actually consists of several files with the same name and an extension that indicates its function. You should be certain when copying shapefiles that all files with the same file name are copied together. For a complete description of the shapefile format see www.esri.com/library/whitepapers/pdfs/shapefile.pdf. You will need appropriate software to view or analyze shapefiles on your own computer. A variety of commercial and publicly available software products are available for this use. KGS does not recommend or endorse any of these products.

Coordinate system and datum. These data are supplied in latitude and longitude coordinates, referenced in both the North American datum of 1983 (NAD83) and the North American datum of 1927 (NAD27). NAD27 uses the Clark 1866 Reference Ellipsoid which is the basis for most of Kentucky's topographic maps. NAD83 uses the GRS80 Ellipsoid and is the prefered datum for collecting GPS data. In all other respects, these data are identical. Users who wish to compare these geologic data to other spatial information should determine first that they are in the same datum.

Quadrangle maps in latitude/longitude coordinates will appear square on the computer screen. In order to measure areas or distances, these data should first be projected. Consult your software documentation for instructions on applying a projection to these data.

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