Overview gunpowder falls state park is a 2.8 mile out and back trail located near Kingsville, Maryland. The trail is good for all skill levels and primarily used for hiking. Reviews Photos Tracks Mark Simmons (237) about 1 month ago N/A: 4 Completed 5 Reviews Followed the blue trail to the north, took the first right and the trail eventually followed the river back to the starting point. Great hike. Mark Simmons (237) 5 months ago N/A: 4 Completed 5 Reviews Local favorite. Easy hike. I went south and did a loop on the Lost Pond trail and finished at starting point. I will return and do the north trails and the opposite shore trails.