What species

[BYUHunter]

I was fishing yesterday at a local reservoir, the fishing was hot in the morning, and I landed this fish. My first glance at it looked like a lake trout. Google lens even said the same thing. I know there are no lake trout in the reservoir. My next guess was a splake? 
Please chime in!

Your desire for secrecy on your spot doesn't help provide much context clues on what the species might be, but I'm going to hazard a guess based on the wiggle hoochie (and the species) that you were at Jordanelle trying for Kokanee, and caught a Splake. There are a bunch of them in there, a few starting to get some size.