"Larry L" wrote in message
...
I've been lucky enough to spend a fairly large amount of time in Idaho and
Montana, over the years, in the times between June1st and Sept 1st.

I've heard, but never experienced, good things about the fishing in April
and Sept.

If the rivers are not blown in April due to run off, the fishing should be
good. I would keep and eye on river flows and check with a local fly shop
for conditions. I have seen clear conditions one day and chocolate milk the
next. Normally due to a warming trend and rain over night.

Jeff T.