Run 2:45:00  18.0 mi (9:10 / mi) +1750ft 8:24 / mi
Zoo start. To terwilliger and back then to upper macleay and back. Cut the second return short. Serious bonk around 8 miles and never really got back. Hadn't eaten much all day. Didn't take any fuel--could have used some for sure. Trails were horrible. Not totally thawed out, ice in lots of places.