Ennis Lake is a medium sized reservoir that separates the Upper and Lower Madison Rivers. A day trip on Ennis Lake is a great option when planning a Montana fly fishing trip. The lake is located just minutes from the town of Ennis and is also a short drive for anglers fishing around Bozeman.
Ennis lake is a very shallow impoundment with most of the lake less than 8 feet deep. The inlet where the Channels of the Madison drain into the lake provide shallow flats with weedbeds that harbor outstanding trout habitat. These shallow flats also allow for wade fishing. We use drift boats to access the upper half of the lake during prime hatches that take place on the lake in the late summer. The majority of the fishing on Ennis lake is sight fishing to large cruising browns and rainbows. We either fish directly from the drift boat or get out and wade on some of the flats. Occasionally we split a day with the morning spent casting to rising trout on Ennis lake and the afternoon spent fly fishing the Madison River.
Fishing is good early in the season when the ice first melts but the fish are deeper and blind fishing around drops and structure is most productive. As the summer progresses callibaetis and tricorythode mayflies become the dominant food source for the trout. Intense hatches occur daily in the late summer producing a daily feeding frenzy that every fly fisherman should experience. Trout feeding during these famous hatches have been labeled "gulpers" after the frequent sucking noise they make as they swim around with open mouths while inhaling the hatching mayflies.
