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CBTA is a non-profit educational association dedicated to the interpretation of human and natural history at Calaveras Big Trees State Park, in cooperation with the California State Park System. All contributions are tax deductible.

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The State Park Foundation does a great job of staying on top of current reports with regard to the state park closures. Please visit their site by clicking here for the latest update.

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2015 Activities

Fundraising Event

(All proceeds stay in the Park and go towards the CBTA mission to support the delivery of high quality educational and interpretive programs at Calaveras Big Trees State Park)

Summer Concert in the Park – Cantamos

Saturday June 6, 2015 – 2 pm – 4 pm – featuring the local favorite, Cantamosnew canweb

Please join us at Jack Knight Hall in Calaveras Big Trees State Park for amazing music, hors d’oeuvres.  We will be featuring Locke Vineyards wine.

Cantamos - Michela Macfarlane and Cantamos highlight their musical dexterity by moving from arias, traditional Latin songs and musicals, to contemporary favorites. Their music moves seamlessly from English to Italian, Spanish to French to Portuguese, and back again. Michela Macfarlane spent ten years steeped exclusively in baroque music. To expand her singing world she moved to the realms of jazz, pop, and Latin sounds. She is still true to her operatic roots, but has grown as a performer. Michela is backed by Ron Schaner on (Bass and vocal), Fred Treece (Guitar and vocal), Jerry Solberg (Keyboards and vocal) and Scott Leverone (Drums).

Tickets $30.  (Tickets purchased online include Park entrance fee).  If tickets purchased at the door, you will have to pay and additional $10 per car Park entrance fee.

Purchase tickets by clicking here.

Please call CBTA at 209-795-1196 for further information.


June 5, 6 and 7, 2015   Natural History Discovery Program – Presented by Dr. Nancy Muleady Mecham

Calaveras Big Trees Association and  Dr. Nancy Muleady-Mecham are proud to once again announce the “Natural Histnmmwebory
Discovery Program” to be presented June 5, 6 and 7, 2015.  Here is your chance to immerse yourself in the Natural History of the Sierra Nevada at Calaveras Big Trees State Park.  Hikes of 2 miles, demonstrations, talks, and audio-visual programs will include the topics of astronomy; animal adaptations; Sierra geology and weather; dendrochronology; the mixed conifer forest, wildflowers, and birds; Giant Sequoias and fire ecology; people through time; and the history of the National Park Service and one Ranger’s story.  Join Fulbright Scholar and retired National Park Ranger Dr. Nancy Muleady-Mecham for this unique opportunity to learn so much about this very special place.

Click Here to download more information.  Please call CBTA 209-795-1196 to sign up.



Saturday  September 19 – “Disturbance and Succession in Sierra Nevada Ecosystems”      Presented by Dr. Tom Hofstra



How have our local plant and animal communities changed through time.  Dr. Hofstra is Professor of Forestry and Natural Resources at Columbia College.



October 17 -  “Myths, Monsters, and Heroes: Amphibians and Reptiles of the Calaveras Region” Presented by Paul Ustachus

Dr. Ustach, Professor of Biology at San Joaquin Delta College, has previously presented seminars at this park on various local mammals.

All Seminars will be held in Jack Knight Hall at Calaveras Big Trees State Park from 10:00 am-12 noon  There is a day-use fee to enter the Park.  The seminars are free and open to the public.  Pack a lunch, bring the family and plan on spending the day among the Giant Sequoias.  For more information call Calaveras Big Trees Association at (209)795-1196 or visit our website at


Other 2015 Dates to Save

May 23 – September 7 - (weekends and holidays) “Summer Sweetness” – Ice Cream and Popcorn sold at the Warming Hut

June 5, 6 and 7 – Natural History Discovery Program presented by Dr. Nancy Muleady-Mecham

August 15 - Family Day

October 3Fundraising Dinner Show - “KCBT – August 1945 – A Radio Play”

December 296th Annual Winter Wonderland Carnival



Camping All camping is on reservation.  Contact Reserve America for reservations.  The Dump Station is ioen.

North Grove Guided ToursGuided walks of the North Grove are held Saturday at 1 pm.   The walk is 1.5 to 2 hours.  Meet in front of the Visitor Center.

Join CBTA !

Support from members helps the Calaveras Big Trees Association fulfill its mission of delivering high quality educational and interpretative programs at Calaveras Big Trees State Park.

Since 1974, CBTA has been able to assist in enhancing the visitor’s exploration and enjoyment of Calaveras Big Trees State Park.

Becoming a member of CBTA affords you unique benefits like seminars, workshops, trainings, special events, collaboration and so much more.  Other benefits include a 20% discount (beginning October 1st) in the Visitor Center store and the Big Tree Bulletin published three times a year.

But the greatest benefit of being a member of CBTA is knowing you are contributing to protecting Calaveras Big Trees State Park and helping others gain an understanding, awareness and appreciation of its natural, cultural and recreational resources.

CBTA was established as a 501(c)(3) non-profit corporation in 1974,  Therefore, your membership and contributions are tax deductible to the extent allowable by law.

If you would like to join, please click here to read about the different levels of membership and then to complete the application online or click here to download an application.  Thank you all for all of your support.  We couldn’t do it without you!  Please call the office at 209-795-1196 if you have any questions.

Visitor Center Hours


Memorial Day Weekend – Friday, Saturday and Sunday 9 am – 6 pm

Monday through Thursday 9 am – 5 pm – Friday and Saturday 9 am –  6 pm daily

June 10 – Labor Day 9 am -6 pm daily


Support CBTA While You Shop

Now you can help Support Calaveras Big Trees Association as you Shop!

We now have several different programs that are easy to join that allow a percentage of your purchases to be directed to Calaveras Big Trees Association


The owners of Sierra Hills Market and Angels Food Market have generously made available the Escrip program to benefit local non-profit organizations through the use of the Escrip Community Card.  When you use your the card, CBTA has the ability to earn up to 5% of monthly purchases when you shop at either market.  How easy is that!  Just show your card or give the clerk your phone number and you help support CBTA.  Once you are enrolled, you can go online and find out about other benefits of the Escrip program.

To sign up simply down load the  form Escrip Form here, fill it out and take it with you the next time you shop at Sierra Hills or Angels Food Markets,  or you may sign up in the store.  Please indicate Calaveras Big Trees Association as your desired beneficiary.


S.H.A.R.E.S is an acronym for Supporting Humanities, Arts, Recreation,  Education and Sports and is Save imagesMart’s way of
giving back to the community.  Again, when you present this card at checkout, a percentage of your purchase is directed to CBTA.



If you shop at, you can now support CBTA by shopping at AmazonSmile.  Everything like Amazon Prime works just the same once you are

When first visiting AmazonSmile, you will  be prompted to select a charitable organization from almost one million eligible organizations.  For eligible purchases at AmazonSmile, the AmazonSmile Foundation will donate 0.5% of the purchase price to the customer’s selected charitable organization.

Click Here to get started.

However you choose to do it, it is a painless way to help CBTA continue its efforts to provide outstanding interpretive and educational programs at Calaveras Big Trees State Park.  Thank you for your continued support.  Please call the office with any questions at 209-795-1196.