The Nevada magnetic compilation contains data from 82 separate digital magnetic surveys and digitized maps. The index maps show the location and flight-line spacing of the original surveys. Map 1 indicates the surveys that were used to create a generalized base with lower resolution data. Map 2 indicates surveys that were merged subsequent to the initial compilation on map 1 since they are of higher resolution. The color yellow indicates background where no surveys exist on that map. A tabular data table provides a summary of the sources. See section Nevada Magnetic Compilation for a description of digital and digitized data.