Monomonac Hill Conservation Area Location Off of Lakeview DriveWinchendonMA01475 Next Event Monomonac Hill Trail Work - Tread Work - 05/18/2024 - 9:30 am - 12:00 pm Upcoming Events Monomonac Hill Trail Work - Tread Work - 05/18/2024 - 9:30 am - 12:00 pmMonomonac Hill Trail Work - Home Stretch! - 06/11/2024 - 4:30 pm - 6:30 pm