Our members of the historical society are precious in so many ways. Many jump in to help with events, offer ideas and support, funnel new items to the museum for our exhibits, and offer financial support. For this, we have appreciation beyond words. The yearly funding provided by Mono County and the Town of Mammoth Lakes covers only a very small percentage of our annual employee expenses and museum overhead. Despite this limited civic funding, the museum has continued not only to survive, but to grow into a viable and beloved public institution. Membership dues are earmarked to support the operating costs of the museum. No funds go toward administration because our board is all a non-paid, volunteer effort.

There are several large projects to be undertaken at the Hayden Cabin. The roof on all three buildings is nearing the end of their useful life, the electrical systems need to be upgraded to current standards, and the landscaping needs renovation in order to protect the lovely setting so many people enjoy. We will be looking at a variety of ways to generate the funds and support necessary for these projects. Becoming a member, or renewing your membership of the historical society will help us to reach our goals. All donations to the historical society are tax-deductible. With your help, we can continue to provide a high level of service to the community, as well as to properly maintain the important historic archives, buildings, and cultural assets that have been placed under our trust.


  • 10% discount in the museum gift shop

  •  Free entrance to select museum events

  •  Free entrance to the Annual Pioneer Party and General Membership Meeting

  • The opportunity to feel proud you are involved in protecting the history and heritage of our beautiful Mammoth Lakes!

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Become a Member



Sign up to be a member of the Mammoth Museum online by clicking the button below.

Mail In Option

Please fill out the application below and mail membership and check to:

Southern Mono Historical Society

P.O. Box 65

Mammoth Lakes, CA 93546

The Southern Mono Historical Society is a 501(c)3 not-for-profit organization that encourages donations in order to help us maintain the history of Mammoth Lakes at the Mammoth Museum.


Other Ways to Donate to the Museum


Amazon Smile

Consider donating through your Amazon purchases! The AmazonSmile Foundation will donate 0.5% of the purchase price from your eligible AmazonSmile purchases to the organization of your choosing. If you’d like to donate, select Southern Mono Historical Society, who operate the Museum, as the organization you would like to support. Learn more below.


Our Retail Store

Located inside the Hayden Cabin, our retail store carries items that range from the sunscreen or bug repellent you forgot to bring to local artwork, t-shirts, puzzles, postcards, and more!

Hayden Map Company Maps for Sale

We sell the original maps made by the Hayden Map Company in our retail store during the months we are open. Come in and check them out!

Our retail is open during the summer/early fall months that the museum is in operation. See our hours here. All the proceeds go towards maintaining and improving the Hayden Cabin.

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Visit our Projects Page to see how your donations are helping us maintain and improve the beautiful Hayden Cabin and its surroundings.

Thank you for your donation!