Have climbed, hiked, bushwhacked (navigation), trail-ran pretty much all ranges and aspects of the Front Range. Quad-Pointing REALLY gets one out to discover the lesser known areas accessable only by hoofing straight up sides, up drainages, across private property using only map & compass.
Then there's the area's high peaks...
SO much diversity.
"As an adolescent I aspired to lasting fame, I craved factual certainty, and I thirsted for a meaningful vision of human life - so I became a scientist. This is like becoming an archbishop so you can meet girls."