Sure, seventeen-foot-tall superpipes and outlandish circus rails might gain the attention of the pros and magazine photographers -- but for the average rider, bigger does not always equal better. The design team behind Keystone's A51 realized this a few years back and has since put together the most coherent -- and fun -- terrain park in the state, one that ranks among the best in the nation, according to TransWorld Snowboarding and Freeskier magazines. Eschewing the trend of high-concept features, A51's rails and jumps are relatively small and simple (or "slayable," in park-rat speak), and organized along four lanes for good flow, quick runs and good times. Shred alert!