YellowStoneFly's recent email response (with minor editing) to a new Idaho fly fisher moving from Dillon, MT to Bonners Ferry, ID for his work.
"Thanks for the recent email. I have been in Idaho for almost 17 years and semi-retired out here in 2010.....The smaller lakes I find most productive in the spring while snow melt messes with the rivers and streams. This usually lasts until early to late June, but with a scarcity of snow this year, I expect most streams to clear by late May unless we get a dump in late March or April."
"The Bull fishes well in the spring before July. There is a great brown Drake hatch on certain areas of the Bull. These are very large flies (10-14) and when you are ready I’ll tell you where to find the fish..... Float tube or pontoon boat are your best choices here. This is not a wade fishing river."
"The Kootenai can fish well from May through October..... My favorite..... The Yaak to Moyie River float is 17 miles (7-9 hours), but one of the prettiest floats you will ever do. Absolutely NO fishing pressure here. Definitely requires a drift boat or large raft. There are multiple places to get out and wade when the water recedes."
"The Moyie is definitely one of my favorites. Spring snow melt makes wading tough and drift boat or raft is the best choice. After about June 1 it is okay to use a pontoon, raft or float tube. The wading areas begin to appear about this time. By late July, the fishing tends to really slow down due to warm water, although fish can be found in certain places."