Originally Posted by
Underground
Also, Coldspring has some nice ones out there. They aren't insanely steep, but are frequent enough to work you out.
I rode Coldspring last weekend and there are some *tough* hills. Not insanely steep but steep enough for me to say "oh fudge me" several times.
http://connect.garmin.com/activity/172559600
Did 3 loops but you'll have a good workout after 2.