NCF-Envirothon is a 501(c)3 not-for-profit organization established to coordinate the delivery of an environmental education program for high school students throughout North America.  NCF-Envirothon is headquartered in Washington, D.C.

The environmental education program consists of the annual NCF-Envirothon Competition in which winning teams from participating states and Canadian provinces compete for recognition and scholarships by demonstrating their knowledge of environmental science and natural resource management.  The competition is centered on four universal testing categories (i.e., soils/land use, aquatic ecology, forestry, and wildlife) and a current environmental issue.

The Envirothon program is an effective educational tool, capable of supplementing environmental education both inside and outside the classroom. Led by a volunteer advisor, teams usually meet from late autumn until spring. Teams work collaboratively to develop their knowledge of ecology and natural resource management and to practice their environmental problem-solving skills in preparation for Envirothon competitions.