Mount rose snow sampler
From AMS Glossary
Mount Rose snow sampler
A snow water content sampler consisting of a hollow tube of steel or duralumin and having an internal diameter of 1.485 in. so that each inch of water in the sample weighs one ounce.
This sampler is used almost exclusively in sampling deep snow in the mountains of the western United States. Its design includes a cutting lip for penetrating ice layers in the snow, longitudinal slots for cleaning after a measurement, and accessory wrenches for assembling and driving. The tube is made in short sections with threaded couplings so that it can be disassembled for transportation.