Orienteering 30:00 
Set out some flags for Keegan and Vilppu at Boojum. It got dark. My light (bike light) was fading. It was nice walking the familiar trails back to the car in the deep dusk. The parking lot was to the west, so I could follow the lightest part of the sky. Earlier, when I was setting the last control, I saw yellow lights through the trees; at first I thought it might be a person, but it was streetlights from the perimeter. I saw Keegan's light soon after, which was good, because my light was flashing to indicate the battery about to die, and I was able to give him the maps for the last loop, and use his light to look at the map to confirm how to get back from where I was.