Longest run ... at old threshers

I drove over to Old Threshers to run the hills for my longest run so far. I ran 35:42, climbing the hills and not worrying about pace. It was two big loops of the grounds -- down and back up. I was very tired afterward but held up well. I did feel like I would get some cramping in calf/lower leg, right leg, but eased up as that came on. After 30 minutes, I stopped, stretched a little, then did about 6 minutes more.