Aster Creek—P : 7—1885—U. S. G. S.—Characteristic.
Astrigent Creek—J : 12—1885—U. S. G. S.—Characteristic.
Atlantic Creek—S : 13—1873—Jones—Flows from Two-Ocean-Pass down the Atlantic slope.
Badger Creek—P : 13—1885—U. S. G. S.—Characteristic.
Basin Creek—Q : 9—1885—U. S. G. S.—Characteristic.
Bear Creek—B : 7—1863—Party of prospectors under one Austin. On the way they found fair prospects in a creek on the east side of the Yellowstone, and finding also a hairless cub, called the gulch “Bear.”—Topping.
Bear Creek—K : 11—1885—U. S. G. S.—Characteristic.
Beaver Creek—O : 9—1885—U. S. G. S.—Characteristic.
Beaver Dam Creek—O : 12—1871—U. S. G. S.—Characteristic.