A surgical mask is used inside the operating room or during other sterile procedure areas to protect the patient environment from contamination. Surgical masks have ties so that they can be adjusted for fit, and are tied over the top of a surgical or bouffant cap.
rockfall. 1  an act or instance of the falling of rock, as in a cave-in or an avalanche. 2  a mass of rocks that have fallen: to be trapped under a rockfall.
The largest waterfall on the New River, Sandstone Falls spans the river where it is 1500 feet wide. Divided by a series of islands, the river drops 10 to 25 feet. Sandstone Falls marks the transition zone of the New River from a broad river of large bottomlands, to a narrow mountain river roaring through a deep boulder strewn V- shaped gorge. The falls form the dramatic starting line for the New Rivers final rush trough the New River Gorge to its confluence with the Gauley river to form the Kanawha River.