The following Yellowstone River hatch chart represents a sampling of the major hatches that occur on the Yellowstone River and many of the smaller tributaries in the upper Yellowstone River drainage. Montana has a wide variety of rivers, streams and lakes. The Yellowstone River has some of the most prolific hatches in the western United States. As the longest free flowing (non-damed) river in the continental U.S. it has a wide variety of water. Anglers can expect extremely localized insect emergences even during the course of a day or several mile stretch of water. Also, as seasonal and weather conditions effect insect emergence the represented timeframes may vary slightly.
Yellowstone River Hatch Chart
While this Yellowstone River hatch chart represent the majority of major insect emergences on the Yellowstone River anglers should be prepared with a variety of sizes and patterns for the insects above. Also, a wide variety of attractor patterns are always a good option to have in your arsenal.
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