What is Cfsm?
Cfsm meaning (watercourse). An open conduit either naturally or artificially created which periodically or continuously contains moving water, or which forms a connecting link between two bodies of water. River, creek, run, branch, anabranch, and tributary are some of the terms used to describe natural channels. Natural channels may be single or braided (see Braiding of river channels) . Canal and floodway are some of the terms used to describe artificial channels.
reference: USGS – Water Basics GlossaryWhat is