Humboldt Redwoods Interpretive Association

HRIA Logo Humboldt Redwoods Interpretive Association (HRIA) plays a significant role in the interpretation of Humboldt Redwoods State Park, California's largest redwood state park. The park features the world's tallest trees along the Avenue of the Giants and has many miles of trails and a scenic highway.

The success of the association is directly related to its membership and endowment programs. Funds raised through these and other activities enable HRIA to develop displays, purchase equipment, sponsor research, publish interpretive literature, and also to support the expansion of the Humboldt Redwoods State Park Visitor Center and its quality exhibits.

The HRIA is an official cooperating association with California State Parks. For more information or to join, visit the Humboldt Redwoods Interpretive Association website.

Humboldt Redwoods Interpretive Association
P.O. Box 276
Weott, CA 95571
TEL 707-946-2263

Find a Cooperating Association

California State Parks has a valuable relationship with more than 80 cooperating associations authorized pursuant to Public Resources Code 513. These non-profit charitable organizations are dedicated to enhancing the educational and interpretive programs in California State Parks. Associations are related to, but independent of the state parks they serve.

Many associations have websites. California State Parks encourages you to visit these websites, however does not guarantee the content, timeliness or accuracy of the materials on these sites.