• Professional Societies & Associations

• 1297.

Soil and Water Conservation Society

A nonprofit seeking to improve management of soil and water resources in California and Nevada.

• Historical Societies and Related Activities

• 1298.

Mountain Parks Foundation of Santa Cruz

Mountain Parks Foundation supports the nature education and enrichment programs offered at Henry Cowell and Big Basin Redwoods State Parks.

INDIAN CREEK NATURE CENTER

A 500-acre outdoor education center with hiking trails and restored prairie, woodland and wetland, open and offering programs to the public 365 days a year.

• Cultural/Ethnic Awareness

• 1300.

Jayhawk Institute-Enduring Legacy

The JayHawk Institute is an open resource for exploring the past, present, and developing traditions of Pacific Northwest cultures.

Historic Madison Foundation Inc

TO PRESERVE AND EDUCATE THE PUBLIC ABOUT HISTORIC ARCHITECTURE.

RIVERSIDE NATURE CENTER ASSOCIATION

Riverside Nature Center is a 501(c)3 member supported organization, founded in 1989.

• History Museums

• 1303.

Greater Southwest Historical Museum

Our goal is to collect, preserve, and interpret artifacts that represent the social, cultural, and economic history of South-Central Oklahoma.

The Har-Ber Village Foundation

Har-Ber Village Museum celebrates the bygone era of pioneer life in Oklahoma.

CALIFORNIA MARINE SANCTUARY FOUNDATION

Working to protect California’s coastal ecosystems while strengthening coastal resilience 🌊⁣.