In the Baldy area nothing gives you bang for the buck like the Register Ridge trail. From the start of the spur off the Ski Hut trail to the top of Mt Harwood you cover 1.5 miles and climb 2,800 feet at an average grade of 35%. I don't even bother with the ski hut trail (too many people) or the backbone trail anymore, I just take RR up AND down. Works out glutes, quads, calves and knees quite well.
