Mammoth Main Base Redevelopment

What's Happening Now?

The Notice of Preparation (NOP) of a Draft Environmental Impact Report (EIR)/Environmental Impact Statement (EIS) for the Main Base Redevelopment Project is now available for public review. The NOP contains information about the project and potential environmental effects to be analyzed in the EIR/EIS. 

An in-person public scoping meeting was held on November 30, 2022 to inform interested parties about the project and offer an opportunity to provide comments on the scope and content of the EIR/EIS. Links for the presentation and video recording are below.

Please provide comments by 5:00 p.m. on December 27, 2022 via the USFS website at by clicking on the "Comment/Object on Project" on the right side of the page.

For more information, please click on the Notice of Preparation link above.

Project Information

Stay Informed

Sign up here for the project email list (this email list is managed through the USFS website - please click on "Subscribe to Email Updates" under Get Connected on the right side of the webpage)

Past Meetings

Related Links

USFS Mammoth Mountain Main Lodge Redevelopment webpage


In 2020, a land exchange to allow for private ownership and redevelopment of approximately 35 acres at the base of Mammoth Mountain Ski Area (MMSA) Main Lodge area was completed (see Mammoth Base Land Exchange here).

In 2021, a conceptual plan for redevelopment of the Main Base was submitted to the Town, and a joint Town Council and Planning and Economic Development Commission (PEDC) workshop was held in June 2021 (see Past Meetings, below). Subsequently, a MOU was executed between the Town, USFS, and applicant for the preparation of a joint Environmental Impact Report/Environmental Impact Statement (EIR/EIS). An EIR/EIS is the required environmental review for this project under State and Federal law.

During 2022, the applicant continued to work with the USFS and the Town to prepare for formal application submittal to the Town. In September 2022, a specific plan application (DZA 22-001, GPA 22-001) was submitted.


If you have any questions about the project or would like more information, please contact Jen Murillo, contract planner, at or (805) 556-4720.