Patuxent Research Refuge Manager Brad Knudsen poses for a photo at the National Wildlife Visitor Center at the Patuxent Research Refuge in Laurel on Wednesday, Dec. 6, 2017. (Jen Rynda / BSMG)

Tour the Patuxent Refuge Central Tract with the former refuge manager, Brad Knudsen, and learn about the history, ecology, and research of this beloved Laurel treasure.

This event has been postponed due to weather. Check back later for new date.