Crappies are pretty rare in Adirondack waters in general. Not a lot of lakes with the minnow population to sustain them, and not a lot of interest in introducing predators to compete with the trout populations. Life in the colder, clearer Adirondack lakes is much like life in the Adirondack forest - tough and sparse. The trout do well because of the relatively low temps, and the availability of insect life (you might have noticed the black fly and misquito population?) or a few minnow species for prey. There's plenty of places with warmwater species like bass and pike, yellow perch and pumpkinseeds, but I rarely ran across bluegill there in 20 years of fishing, nor much of a crappie population even in the warmer, shallower lakes.