Running 1:16:31 [2] 10.37 km (7:23 / km)
Having dropped Dan off at home after the training, went a scouting to Bull Run Regional Park. Largely floodplain, flatter even than Mason Neck, speckled with rootstocks where not open or developed for human recreation (large picnic area and six circular clearings containing soccer fields). Woods mostly good visibility, thorns mostly absent. Too bad about the many grassy plants, some invasive, carpeting much of the woods, but they shouldn't be a problem in November-April the way they are at the moment. Overall, worth giving a fairly high priority on our mapping prospect list.