Furthermore, the Massachusetts Water Resource Authority (MWRA) owns much of the land. The Town of Holden owns over  as the Trout Brook Conservation Area, and the Massachusetts Audubon Society owns several hundred acres in the Wachusett Meadow Wildlife Sanctuary, in addition to other properties within this sub-basin.
The Massachusetts Water Resource Authority (MWRA) holds a significant portion of the land. The Town of Holden owns over  as the Trout Brook Conservation Area, and the Massachusetts Audubon Society owns several hundred acres in the Wachusett Meadow Wildlife Sanctuary, along with other properties within this sub-basin.