Nice Kitty Starts out just a short distance up S Buffalo Creek Road from trailhead 543. It starts climbing immediately and fairly steeply, with switchbacks through heavy forest.
After a pretty good grind, it starts to open up a bit, crosses over some fun slickrock-type features, then the climb mellows out about halfway up, as you start to cross into the wide open, heavily burned zone at higher elevation. Up there, the trail gets a bit sandier, and winds around on itself as it works southeast towards the Colorado Trail.
The last 1/4 of the trail climbs fairly steeply again, eventually topping out with expansive views of the now barren landscape, with burned stick remnants of trees dotting the landscape.
The trail intersects with the Colorado Trail, where most folks will turn right to make a loop and connect with any number of other trail options at Buffalo Creek. Have a plan ahead of time, or bring the MTB Project mobile app to help you find your way.