The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large brown trout that only touch streamers for the rest of the year.
My hunch is we got us a whole lot o' intergradin' goin' on round heah! :)
Well, Foghorn Leghorn aside, that was the gist of A&E's paper regarding our state. Intergrades between the two species where their ranges overlap coupled with the curious phenomenon of specimens of both becoming more spiny as their ranges move westward toward the coast renders their keys unworkable for us. Sure like to know how the later M&M paper determined that coloradensis inhabits our coastal counties.