Sat 4/13 7th Open Farm Day at Brownsville Preserve Open Farm Day 2024 will be held 10:00 am-3:00 pm - Brownsville Preserve in Nassawadox! Free and to join the staff and volunteers of The Nature Conservancy for this FREE on featuring guided nature... Sat 4/13 @ 12:00 am Nassawadox, VA. The Nature Conservancy's Brownsville Preserve, 11332 Brownsv.. Share facebook twitter Like Edit Event Delete Event