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| Earth Resources Observation and Science (EROS) |
Index/Mapping Photography
| Contents: | 
Photo index |
Individual aerial photograph |
Product DescriptionIndex/Mapping Photography was mainly produced during the creation and refinement of the USGS topographic map series. The film is referenced as a series of photo indexes (mosaics), each of which consists of a single-sheet composite of many individual photos. The photos date from the 1940`s - 1980`s, and they were originally acquired by a variety of sources such as USGS, EPA, BLM, U.S. Air Force, U.S. Navy, and others. Index/Mapping Photography is not a standardized product, and individual photos will vary in scale, size, quality, and coverage. Almost all of the photos were taken from a vertical perspective. Most are in black & white (B/W), although color and color infrared (CIR) may be available for some locations. Additional Information: Back to TopSearch & OrderThe U.S. Geological Survey (USGS) Center for Earth Resources Observations and Science (EROS) is in the process of digitizing all photo indexes in the archive, as well as the individual frames from each index. The current plan is to begin creating browse images from USGS Indexes and USGS Historical Photographs, followed by other agency collections. Currently, the majority of the USGS mosaics are available to view and/or download as a high resolution jpeg. These can be searched on Earth Explorer in the Aerial Photos - USGS Photo Reference Mosaic collection. To order a High Resolution Scanned product only, select the frame of interest and contact USGS Customer Services. As soon as an entire Project has been digitized, the individual frames will be available to search and order on Earth Explorer. These frames are available as a High Resolution Scanned or Medium Resolution Digitized product. A status map is available showing where individual frames from Indexes are available. At this time, only 9 x 9 inch source photographs will be available as a digitized product. Contact USGS Customer Services for more information. Other sources for searching and ordering: Businesses that can provide printed images from USGS digital data. Back to TopDigital File SizesHigh Resolution Scanned - *.TIFF images:
* Color/CIR film source is not available at a 7 micron spot size because the file size is too large and/or there are no advantages below the 14 micron spot size. The above sizes may vary due to scanning more than just image data. With our policy to scan the surrounding metadata and the addition of the USGS logo the actual image size will generally be larger than the estimates above. Medium Resolution Digitized - *.TIFF images: The file sizes are approximately 15 megabytes for black and white images and 40 megabytes for color images. The files are stored in a TIFF format. The medium-resolution files are created at approximately 400 dpi. Back to TopPricesHigh Resolution Scanned: $30.00 per frame The following table describes the maximum stacking limits (the number frames can fit on DVD media). The stacking limits are based on three criteria: Film Source Size, Micron Size and Film Image Type (B/W or Color/CIR).
* Denotes the recommended micron size Medium Resolution Digitized: $3.00 per frame The following table describes the maximum stacking limits (the number frames can fit on DVD media).
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