AR,

I am not a trout guy, but I am confused about your goals for the pond. Do you want a tree-lined pond to provide shade (and cooler water temps) for your trout?

As esshup says above, more trees equals more leaves equals more muck.

I have thrown some creative casts in some pretty tight spots while fishing tree-lined creeks for bass and bluegill. There is no way I could have cast a fly in those tight spots against trees (but I am a poor fly fisherman).

My advice would be to calculate the required free space from the edge of the pond for fly casting. I would then plant my trees at the distance that the branches of mature (pruned as needed) trees would not intrude into that space.

At that distance from the pond, I would think you could plant almost any trees you desired without having much effect upon the pond. Although I would still stay away from the oaks and walnut trees.

Good luck on your pond dream. It sound awesome!