Lisbon's Forest Inventory begins with the 2009 Wisconsin Department of Natural Resources (WDNR) Urban Forestry Grant. That grant provides access to education and resources needed to implement a forest inventory plan for Lisbon. The plan will benefit Lisbon's forests, wildlife, air quality, and tree practices for community properties. It also provides opportunities for residents to learn how they can be involved in identifying and mapping trees on private properties throughout Lisbon.