A Digital Raster Graphic (DRG), is a scanned image of a USGS topographic map. The map is georeferenced to the surface of the earth and fit to the Universal Transverse Mercator projection, and is scanned at a minimum resolution of 250 dots per inch.
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- Star Plots
- Correlation Matrix
- Similarity Matrix
- Stem & Leaf Plot
- Box Plot
- Histogram
- Parallel Coordinate Graph
- Triangular Plot
- Windrose
- Climograph
- Population Profile
- Scatterplot
- Index Value Plot
- Lorenz Curve
- Bilateral Graph
- Nominal Area Choropleth Maps
- Unstandardized Choropleth Maps
- Standardized Choropleth Maps
- Univariate Choropleth Maps
- Bivariate Choropleth Maps
- Unclassed Choropleth Maps
- Classed Choropleth Maps
- Range Graded Proportional Circle Maps
- Continuously Variable Proportional Circle Maps
- DOQQ
- DEM
- DLG
- DRG
- Isopleth
- Isopach
- Isohyets
- Isotachs
- Isobars
- LIDAR
- Doppler Radar
- Black & White Aerial Photo
- Infrared Aerial Photo
- Cartographic Animations
- Statistical Maps
- Cartograms
- Flow Maps
- Isoline Maps
- Proportional Circle Maps
- Choropleth Maps
- Dot Distribution Maps
- Propaganda Maps
- Hypsometric Maps
- PLSS Maps
- Cadastral Map
- Thematic Map
- Topographic Map
- Planimetric Map
- Mental Maps
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