Looks like a Brown Trout to me. No spots on the tail fin?
Guessing that is a female.
How to tell sex of a trout:
http://www.ginkandgasoline.com/fly-f...ex-of-a-trout/
Female trout all have a short rounded nose or upper jaw, while male trout have a more elongated snout.
Sexually mature male and female trout for both rainbows and browns have different looking anal fins. A male will have a slight convex anal fish “(“, while a female trout’s anal fin will be slightly concave “)”.