United States Department of Agriculture
Natural Resources Conservation Service
National Water and Climate Center Go to Accessibility Information
Skip to Page Content
National Water and Climate Center


  


Snow Course Data Network

Snow surveys in the West date back to around 1906, when the University of Nevada's Dr. James Church laid out the first western snow course. Dr. Church also invented key sampling procedures and equipment. Manual surveys require two-person teams to measure snow depth and water content at designated snow courses. A snow course is a permanent site that represents snowpack conditions at a given elevation in a given area. A particular snowpack may have several courses. Generally, the courses are about 1,000 feet long and are situated in small meadows protected from the wind.

For Snow Course products, choose from the menu selections at the left.

Historical photograph (circa 1907) of Dr. James E. Church - Courtesy of the Western Snow Conference
Dr. James Church is pictured here in an historical photograph. He developed measuring equipment and sampling techniques that led to the first water supply forecasts.