Use extreme caution! Only for professional swimmers and stuntmen. Anyway, the adrenaline is exhilarating as well as faintheartedness inducing. There are lower ledges as well if 76 feet makes you uncomfortable. The bunny slopes are inbetween 30 and 40 feet and are far more safe than Good Ole 76'er.
Get to Red Rocks Point in Red Rocks Park and follow the coast line until you stumble across the 76ft marking.