First time at Henry's Lake

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I am coming up from Utah to fish Henry's Lake and probably the Madison and Firehole rivers in Yellowstone NP this week with my family. I will be flyfishing Henry's from my kickboat as well as fishing from the shore with my kids. Can anyone give me advice on fly patterns, fish depth, areas of the lake, etc? Not looking for anyone's secret sauce, just some general pointers. I already posted on the Utah forum and got some good advice, but thought I would post here as well. Thanks in advance!
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