Tree trimming can be dangerous. Any tree trimming should be left to professional tree trimmers.
- Tree Line USA - Sponsored by the Arbor Day Foundation. WPS has been an annual award recipient of the Tree Line USA award for our practices in utility arboriculture. Tree Line offers great information for utilities, communities and anyone interested in best tree care practices.
- The Arbor Day Foundation - A nonprofit conservation and education organization. It attempts to inspire people to plant, nurture and celebrate trees. It offers a lot of great information.
- Central and Eastern Wisconsin
- Northern and Western Wisconsin
- Diggers Hotline (Wisconsin) 8-1-1
- MISS DIG (Michigan) 8-1-1