Kentucky enjoys relatively little cold-water habitat suitable for trout, and even fewer streams that support self-reproducing populations of wild trout. Where they exist, they appear mostly to be in the eastern end of the state, along Pine Mountain, and in the “Eastern Coalfields Region” which is part of the western edge of the Cumberland Plateau that extends from Pennsylvania to Alabama. Other streams appear to be tailwaters, or isolated spring creeks.
Source: KY Dept. of Water, KDFWR, WildTroutStreams.com, Google Earth
The image above depicts all of the streams identified by KDOW as supporting Coldwater Aquatic Habitat (CAH). Many of these streams are designated Trout Streams by the KDFWR, though this designation is not part of the original dataset. WildTroutStreams.com edited the data to add the KDFWR designation where available. These are designated Class I to IV according to habitat quality (the six Class I streams are shown as Cyan lines). There are also many stream segments which are not designated Trout Waters which are shown as magenta lines. Many are high-order tributaries of classified trout streams, but many stand alone. It’s possible that any of the magenta streams could support wild trout.
Attempts were made in the 1990s to establish self-supporting populations of Brown Trout in several of these unclassified streams which “failed”. The download system provides a 2012 KDFWR document which explains its trout management polices and history. Anyone serious about exploring these KY streams should read that document in addition to using the KMZ.
You may also want to read the page on this website: “What is a Trout Stream?” It describes some of the considerations which may have played a role in these designations.