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400 Sierra Park Rd
 P.O. Box 1120
Mammoth Lakes CA 93546
Telephone: (760) 934-4777
  • Monday through Friday 10:00 am-7:00 pm
  • Saturday 10:00 am-5:30 pm
Contact:  This email address is being protected from spambots. You need JavaScript enabled to view it.

The Mammoth Lakes library located at 400 Sierra Park Rd opened in December of 2007. The new building features 20 public computers, free Wi-Fi, a children’s area equipped with many developmental toys and a programming room, a teen area and two meeting rooms. Scanning services are available for $1/page, printing and copying cost 10¢/page.  The Mammoth Lakes library has a diverse selection of books, audio books and DVDs and an excellent Spanish language collection as well as many foreign language DVDs.

The Mammoth Lakes Library is a joint-use facility with Cerro Coso Community College. The Library serves community college students as their research facility. To access the college library site click this link

Programs: The Mammoth Lakes Library has a variety of special events and programs scheduled throughout the year, such as Kids Cooking Classes, Game Day, Gallery Wall art shows, Ranger programs, Star Night, and Family concerts.  Story times for childern 0-5 are offered on Wednesday mornings at 10:30 am. There is also a Science Book Club. 


An all-volunteer Tax-Aide program will be operating during tax season in the Ellie Randol Reading Room at the Mammoth Library. The program is a partnership between the AARP Tax-Aide Foundation, the Mammoth Lakes Library, and Cerro Coso Community College. It offers free tax help, preparation, and e-filing during February, March, and April through the end of tax season on April 15th. The program operates on Monday, Wednesday, and Thursday afternoons from 1:00 P.M. to 5:00 P.M.

Call Sue at (760) 934-5674 for an appointment. Drop-ins are also welcome. Priority is given to those with appointments. Spanish speaking appointment can be made by calling Terri at (760) 924-3033.

What to bring when you visit our Tax-Aide site:

– Social security cards or ITIN documents for yourself and your dependents and a Picture ID

– Tax statements; W-2 forms, 1099-G (unemployment), SSA-1099, 1099-R, 1099-INT, 1099-DIV, 1099-MISC, 1095-A, broker statements, etc.

– If direct deposit desired, bring account information (routing and acct no)

– Copy of last year’s income tax return (if available)

– Child care provider information (name, provider’s SSN or EIN, address, and phone)

- If itemizing deductions, bring past 2 years property tax bills, form 1098 for mortgage interest, DMV statement or car registration, medical expenses, charitable deductions, new care invoice, etc.

About AARP Tax Help

The Mammoth Library Tax-Aide site has 15 volunteers (two Spanish speaking). Last year, over 575 tax returns were prepared and filed. These volunteers help people with a wide variety of tax situations, including various forms of income, unemployment, education credits, earned income credit, child tax credit, dependent care deductions, renters’ credit, itemized deductions, investment sales, and small businesses.

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