American River Natural History Association (dba Effie Yeaw Nature Center)


The American River Natural History Association (ARNHA) and the Effie Yeaw Nature Center are dedicated to providing educational and interpretive programs and information about the natural environment, principally in the American River Parkway.

people were served last year through our education programs, Visitor Center and individuals walking the trails.
students from low-income, underserved communities that typically lack access to nature received programs at no-cost to the school.
students received paid programs at the Nature Center and in their classrooms.
provides food, veterinary visits and care from dedicated staff and volunteers for 1 non-releasable Animal Ambassador for one month.
Allows our Naturalists to provide nature education in the classroom for schools that cannot visit the Nature Center.
Welcomes students to the Nature Center for a tour of the Visitor Center, a hike on the trails and an up-close meeting with one of our animal ambassadors.


2022 Budget
64%Program Spend
15%Management Spend
20%Fundraising Spend


Animal Care

The Nature Center cares for non-releasable, native wildlife that has been injured in the wild, illegally kept as a pet and a variety of other reasons. These animals serve as ambassadors for their species and provide up-close encounters with members of the public. This opportunity saves animal's lives and provides unique connection with local wildlife.

Nature Area Tour

Students get to experience an up-close and personal encounter with one of our animal ambassadors, tour our interactive museum and joining a naturalist to explore the Nature Preserve. Moreover, students encounter natural phenomena and learn science by examining structure and function, cause and effect, and more.

Classroom Outreach

Classroom outreach programs allows naturalists to bring the wonders of nature into classrooms with science that comes alive with hands-on activities and interactive nature-focused topics. Students explore skulls, furs, or other biofacts, and meet some of our resident animals.

Maidu Program

Our Maidu programs immerse students in Native American traditions and customs where students gain deeper understanding through hands-on, experiential learning. In a classroom, students are able to experience the sights and sounds of pre-1830 Valley Nisenan Maidu culture through presentations, story-telling, and replica Maidu artifact exploration. At the nature center, students get to observe traditional demonstrations on acorn preparation and make observations on native plants and animals used by the Valley Nisenan.