Re: Fly Fishing - Michigan
As was previously stated, Michigan is a big place with a ton of different opportunities to catch fish on a fly. Your dad is probably within walking distance of a subdivision pond that has bass and blue gills. There is trout fishing in Paint Creek in Rochester. There are steelhead in the Clinton River by Yates Cider Mill. He's close to Lake St. Clair. There are a ton of other lakes very close.
He can be "up north" or "out west" within a 3 hour drive, fishing in renowned trout streams.
Has he fished with you out in CO?