Browse the largest forestry research organization in the world and the national and international leader in forest conservation. As part of the Forest Service, the largest agency in the U.S. Department of Agriculture (USDA), our research contributes to the advancement of science and the conservation of many of our Nation's most valuable natural resources.

The Puerto Rico Gap Analysis Project (PRGAP) is a comprehensive assemblage of information on Puerto Rico's land cover, vertebrate occurrences and natural history information, and land stewardship.

The State and Private Forestry (S&PF) organization of the USDA Forest Service reaches across the boundaries of National Forests to States, Tribes, communities and non-industrial private landowners. S&PF is the federal leader in providing technical and financial assistance to landowners and resource managers to help sustain the Nation’s forests and protect communities and the environment from wildland fires.

Established in 1905, the Forest Service is an agency of the U.S. Department of Agriculture. The National Forest System consists of 155 national forests, 20 national grasslands, and 222 research and experimental forests, as well as other special areas, covering more than 192 million acres of public land.