The disciple of Izaak Walton will not have traveled 225 miles along the banks of the Yellowstone without having seen many an inviting spot for indulgence in what his great master called the most calm, quiet and innocent of all recreations. His arrival, therefore, at Billings, the largest town on the upper river, and the metropolis--notwithstanding that it has a population of only 2,000--of a region larger than Maine, South Carolina, West Virginia or Indiana, affords a not unfitting opportunity for a brief reference to the incomparable trout fishing afforded by the numerous streams accessible from points on the Montana and Yellowstone divisions of the road. The Yellowstone river itself, west of Billings, has no superior as a trout stream. It contains trout of four distinct varieties, and fishing is so easy as at times to be in danger of losing its charm. The individual scores of various tourists, reported in the _American Angler_ during the summer and fall of 1885, and not containing any that were phenomenally large, averaged twenty-five trout per hour for each rod, a record with which the most ardent angler ought surely to be satisfied. A majority of these scores were made in the vicinity of Livingston, near which town another visitor is reported to have caught twenty-one fine, large trout "after supper," while two others are stated to have brought in 160 as the result of "a day's sport." The Yellowstone also contains a gamey fish known to local anglers as grayling, but pronounced by Mr. W. C. Harris to be the whitefish (_Corregonus tullibee_). That gentleman refers, in a recent article, to the abundance, in these waters, of the celebrated "cut-throat" trout, whose size and abundance, in conjunction with the picturesqueness of its habitat, will, he adds, when generally known, "make a visit to the Yellowstone imperative to the angler who aspires to a well-rounded life as a rodster." Among other waters, mention may be made of Rosebud Lake, a beautiful spot reached by wagon from Billings, where the trout fishing is declared to be splendid; Little Rosebud Creek, near Stillwater, where eighty-seven trout are reported to have been caught in four hours with a single rod; Prior Creek, near Huntley; Mission Creek, twelve miles east of Livingston; and Sixteen-Mile Creek, sixteen miles from Townsend, all of which are said by visitors to afford excellent sport. It must not, however, be supposed that the angler enjoys a monopoly of sport in this country of varied attractions; for grouse and ducks are plentiful, as are also, on the mountain ranges, deer, elk and antelope.