File:WikipediaEduBelow.svg By David Peters of EXBROOK for the Wikimedia Foundation (Wikimedia Foundation) [CC BY-SA 3.0
], File:WEP_Greece_banner_logo.svg By Selsharbaty
conducted in March of 2010 at Lake Tahoe in various settings and snow depths. Images of footprints, snowmobile tracks, and other disturbances were captured by
Attribution-Share Alike 3.0 truetrue This image is a derivative work of the following images: File:Electron_shell_110_Darmstadtium.svg licensed with Cc-by-sa-2.0-uk