swath
noun
1. the width or path cut by one pass of a scythe, mower, or the like.
2. grass, grain, or the like cut and deposited along a line.
3. a long swathlike strip or belt of anything.
From the air, we could see the swath of destruction left behind by the tornado.
Note: The expression “to cut a wide swath” means “to attract considerable attention; make a big impression.”