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USA Relief

USA Relief - Digital Topo and EPS Geo-Political Maps


Sample area of Utah with cartographic style relief base map
County lines are visible in yellow, Latitude in red, Rivers in blue - see palette below
All features are on separate layers and are adjustable in width, weight, color and opacity.
All five relief backgrounds are interchangeable to allow complete custization of map.

Alabama   Alaska   Arizona   Arkansas   California   Colorado   Connecticut   Delaware   Florida   Georgia   Hawaii   Idaho   Illinois   Indiana   Iowa   Kansas   Kentucky   Louisiana   Maine   Maryland   Massachusetts   Michigan   Minnesota   Mississippi   Missouri   Montana   Nebraska   Nevada   New Hampshire   New Jersey   New Mexico   New York   North Carolina   North Dakota   Ohio   Oklahoma   Oregon   Pennsylvania   Rhode Island   South Carolina   South Dakota   Tennessee   Texas - East   Texas - West   Utah   Vermont   Virginia   Washington   West Virginia   Wisconsin   Wyoming  

USA Relief provides a set of 4 full color shaded relief maps along with one grayscale relief map. These raster maps constitute a highly detailed topographic base over which the EPS vector data features such as coastlines, rivers, interstate and major road systems, railroads, county, state and international borders, town locations, town names text, latitude and longitude grids, are overlayed. The map images in this collection have been computed from the USGS 3 arc second, gridded elevation database and generated at a scale of 100 meters per pixel - giving over 4 Gb of terrain imagery per color style for the entire USA.

Coverage & Organization

The collection includes an individual portfolio of maps for each of the 50 states within the entire continental United States and for Alaska and the islands of Hawaii. A portfolio may be sized from 20 Mb to over 200 Mb depending on the physical size of the state. The collection is grouped in contiguous state sets which ship on individual CD-ROM's complete with HTML instructions.

Image size

Each state map varies in size - at 300 dpi, the base relief image for Indiana measuring 6,000 X 6,000 pixels produces an image 20 by 20 inches, or an umcompressed file size of 108 Mb. As a rule of thumb to calculate the image dimensions, the distance across the state in miles can be multiplied by 16 to give the approximate pixel size, or 1,200 pixels per degree of latitude or longitude - in both cases, multiply the height by the width by 3 to give the file size of the resulting image. For a full specification for each of the 50 state maps, see the detailed state map specification page which shows degree boundaries for each state, number of one degree quads used to make up the map, width and height in pixels and in inches at 300 dpi, and full bitmap image size in megabytes. Remember to double the image size for desktop or exhibition printing at 150 dpi or for screen use in multimedia or web quadruple the image dimensions - this allows small areas to be viewed.

Format

The 5 relief maps are in high quality JPEG format and the vector overlays are provided in a layered (see layers palette to the right) and editable EPS file format, all delivered on CD-ROM. The vector maps may be edited giving clients the option to change line widths and color, font styles and colors, and allowing the placement of any of the 5 relief maps as the bottom layer. Layers themselves may be switched on or off at will and the sequence may be altered to suit any specific circumstances that you wish to portray. Detailed user instructions using Illustrator and Photoshop are given on this web site and on the USA Relief map CD-ROM.

Map Scale

The scale of the relief map images at 72 dpi is 1:280,000. At 300 dpi this would be equivalent to approximately 1:1,000,000. The base relief images are generated from 100 meter USGS DEM data presenting exactly one pixel per 100 meter of terrain.

Projection & Map units

Geographic projection; each map extends to the next nearest degree line around the state and includes a longitude / latitude grid at 1 interval on its own EPS layer.

Applications

The grayscale relief map can either be pre-colored or manipulated in Adobe Photoshop or tinted by applying a colored layer in Adobe Illustrator. Use of these maps is not limited to the applications mentioned here, but can be used with any Image Editor, Graphics or Layout software capable of opening or importing JPEG bitmap and EPS vector files.

Color and Styles

Four color relief map styles shown below are RGB 24 bits per pixel, 300 pixels per inch. The color schemes feature a low contrast (shown in full scale above), a strong high-contrast look, a natural look and a standard cartographic map elevation color scheme. In addition, one grayscale relief map is supplied in 8 bit Grayscale, 300 pixels per inch; this is provided for designers to generate color scheme to match or who wish to apply their own custom house styles to the relief maps.


Cartographic Style Natural Look Style


High-Contrast Style Low-Contrast Style

Ordering options / More Info

The USA Relief collection of 50 US states exceeds 8 GB and 400 files. Each state available separately at $19 by immediate download. The entire USA State collection is available on Flash drive and is priced at $190; separate East and West US collections are priced at $95 each. The division between East and West follows approximately the 95 line of latitude;

East DVDR: Alabama   Arkansas   Connecticut   Delaware   Florida   Georgia   Illinois   Indiana   Iowa   Kentucky   Louisiana   Maine   Maryland   Massachusetts   Michigan   Mississippi   Missouri   New Hampshire   New Jersey   New York   North Carolina   Ohio   Pennsylvania   Rhode Island   South Carolina   Tennessee   Vermont   Virginia   West Virginia   Wisconsin  

West DVDR: Alaska   Arizona   California   Colorado   Hawaii   Idaho   Kansas   Minnesota   Montana   Nebraska   Nevada   New Mexico   North Dakota   Oklahoma   Oregon   South Dakota   Texas - East   Texas - West   Utah   Washington   Wyoming  

Click here to Request more information or click here to place an Order for USA Relief State CD's or Collection DVD's.

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