You can help support the work of the H.R.I.A. (Humboldt Redwoods Interpretive Association) by becoming a member. Funds raised through memberships, endowments, and donations enable H.R.I.A. to develop displays, purchase equipment, sponsor research, publish interpretive literature, and also to fund the expansion of the Humboldt Redwoods State Park Visitor Center and its quality exhibits. A critical element in the success of the Association is its membership and endowment program. Individuals and families throughout the country have long supported the Association.