Map of swirls between +/-60 deg. latitude. Map of lunar swirls (+/-60 deg. latitude) based on LROC Wide Angle Camera (WAC) color mosaic at a resolution of 400 meters/pixel. Swirls are sinuous, high-reflectance markings co-located with crustal magnetic anomalies. Their formation mechanism is not yet known but may be related to an altered or reduced space weathering environment. For details see: Denevi, B. W., M. S. Robinson, A. K. Boyd, D. T. Blewett, R. L. Klima (2016), The Distribution and Extent of Lunar Swirls, Icarus, 273, 53–67, https://doi.org/10.1016/j.icarus.2016.01.017. When citing this product, use the following reference: Denevi, B. W., M. S. Robinson, A. K. Boyd, D. T. Blewett, R. L. Klima (2016), The Distribution and Extent of Lunar Swirls, Icarus, 273, 53–67, https://doi.org/10.1016/j.icarus.2016.01.017 Polygon are available in the IAU Moon 2000 Geographic Coordinate System in both the -180 to 180 and 0 to 360 longitude domains. Longitude Domain Product Name 180 LUNAR_SWIRLS_180 360 LUNAR_SWIRLS_360 Shapefile Field Descriptions: LONGITUDE: Longitude in degrees (-180 to 180) LATITUDE: Latitude in degrees