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CLOCA operates and maintains five snow course survey locations throughout the watershed.
 Map of Snow Survey Station Locations (PDF - 499 K)
A snow course consists of a series of numbered posts driven into the ground 30 metres apart, usually in a straight line. Snow monitoring involves the use of a calibrated sampler, which is a hollow tube with a cutting edge. The tube is rotated into the snow pack to cut a core of snow down to ground level. Each core is measured for depth of snow, water equivalent, type of crust on the snow and conditions of the ground are recorded at each of the stakes. Most importantly, the water content of the snow is calculated, based on the weight of the snow in a core sampler. One ounce of snow in the sampler contains the equivalent of one inch of water. Snow course measurements are taken twice monthly, from December to May.
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