Thanks, guys! Actually that was not my friend. It was just someone parked next to me and gave her time to leave (so I can leave other direction). So she disappeared in bushes, I tied my saddle and next I saw her right next to me. Lol! When I got back trailer was there, but not a woman, so I think she managed him after I left.
Vida, it's big park about 20 mins from me. You certainly welcome to come to MD, so we can ride! :) They maintain really well part of it (trails are wide and clean), but as long as you cross the creek you more or less on your own (although there are number of trails, but not as well maintained and narrow). What some people love to do is go there and then ride along the bigger river to the country restaurant next to the park (they have tie posts for horses there). I did it couple times, but I don't think I can do it with my horses (can't imagine my horse to wait for 3-4 hours there tied to the post .