The Boreal Ecosystem-Atmosphere Study (BOREAS) Hydrology (HYD)-3 team collected several data sets related to the hydrology of forested areas. This data set contains measurements of snow depth, snow density in three cm intervals, an integrated snow pack density and snow water equivalent (SWE), and snow pack physical properties from snow pit evaluation taken in 1994 and 1996. The data were collected from several sites in both the southern study area (SSA) and the northern study area (NSA). A variety of standard tools were used to measure the snow pack properties, including a meter stick (snow depth), a 100 cc snow density cutter, a dial stem thermometer, and the Canadian snow sampler as used by HYD-4 to obtain a snow pack-integrated measure of SWE. This study was undertaken to predict spatial distributions of snow properties important to the hydrology, remote sensing signatures, and the transmissivity of gases through the snow. The data are available in tabular ASCII files. The snow measurement data are available from the Earth Observing System Data and Information System (EOSDIS) Oak Ridge National Laboratory (ORNL) Distributed Active Archive Center (DAAC). The data files are available on a CD-ROM (see document number 20010000884).Hardy, Janet P. and Hall, Forrest G. (Editor) and Knapp, David E. (Editor) and Davis, Robert E. and Smith, David E. (Technical Monitor)Goddard Space Flight CenterFORESTS; DEPTH; SNOW; SPATIAL DISTRIBUTION; TRANSMISSIVITY; AIR LAND INTERACTIONS; HYDROLOGY; REMOTE SENSING; SAMPLERS; SIGNATURES; THERMOMETERS; WATER...