Alman Marsh is 80 acres of pasture/marsh that sits between Shollenberger Park on the south and the Petaluma Marina on the north. It also abuts the river as does Shollenberger Park and the Ellis Creek Water Recycling Facility and associated wetlands to the south of Shollenberger. The city bought this land in the 1980s, breached the 80-90 years-old river levee in a couple of places to allow marshland to rebuild and opened the land as a special part of Shollenberger Park in 2000 – 2002. Alman Marsh is now a mix of brackish tidal wetlands, fed daily by the river, and degraded pasture uplands containing seasonal freshwater wetlands. Alman Marsh is a special, biologically sensitive place as it is home to several threatened and endangered species. Dogs must be on-leash and kept on the trail at all times. This marsh is best entered from the Marina parking lot.