The last two years I've been riding at bigger mountains with more powder. Today while at mt baker I rode (according to ski tracks)about 11k vertical, and around 15 miles. While riding my 3rd or 4th run I noticed my back leg was starting to burn.
Over the last month I've been going to the gym about twice a week in preparation because I had the same thing happen to me last year. Could it be something I'm doing wrong as far as technique, or just not having good enough legs for it? I never noticed an issue when I was in crested butte a few years back, or in Breckinridge the following year. Just at vail last year and today.
Any thoughts would help.