Events
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Birding With Bruce 2025
Calaveras Big Trees Visitors Center 1170 E. Highway 4, Arnold, CA, United StatesBird lovers rejoice! Our volunteer docent Bruce McClenahan will continue the Thursday 9:30am guided bird walks, conditions permitting. Meet Bruce at the Visitor Center on Thursday mornings for a roughly hour-long, easy walk to learn about bird watching and what birds we have here. Call 209-795-7980 for more information.
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Optical Astronomy Nights
The Sept 4th date has been cancelled due to air quality concerns from local fires.
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Birding With Bruce 2025
Calaveras Big Trees Visitors Center 1170 E. Highway 4, Arnold, CA, United StatesBird lovers rejoice! Our volunteer docent Bruce McClenahan will continue the Thursday 9:30am guided bird walks, conditions permitting. Meet Bruce at the Visitor Center on Thursday mornings for a roughly hour-long, easy walk to learn about bird watching and what birds we have here. Call 209-795-7980 for more information.
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Birding With Bruce 2025
Calaveras Big Trees Visitors Center 1170 E. Highway 4, Arnold, CA, United StatesBird lovers rejoice! Our volunteer docent Bruce McClenahan will continue the Thursday 9:30am guided bird walks, conditions permitting. Meet Bruce at the Visitor Center on Thursday mornings for a roughly hour-long, easy walk to learn about bird watching and what birds we have here. Call 209-795-7980 for more information.
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Optical Astronomy Nights
Optical Astronomy Nights at Big Trees. You bring a chair and a blanket, we'll bring the telescopes, and together we'll explore the night sky! Meet at the scenic overlook and come early for best parking.
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Optical Astronomy Nights
Optical Astronomy Nights at Big Trees. You bring a chair and a blanket, we'll bring the telescopes, and together we'll explore the night sky! Meet at the scenic overlook and come early for best parking.
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Optical Astronomy: Dark Sky
Overlook 1170 East Highway 4, Arnold, CA, United StatesMay 14, 2026 (Thursday) at 8:30 PM | Calaveras Big Trees State Park Join us for our first Dark Sky Astronomy Night of 2026. Experience the magic of a truly dark sky at Calaveras Big Trees State Park on May 14, 2026 at 8:30 PM. Far from city lights and surrounded by towering sequoias, [...]
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Optical Astronomy: Moon Night
Overlook 1170 East Highway 4, Arnold, CA, United StatesMay 21, 2026 (Thursday) at 8:00 PM | Calaveras Big Trees State Park Join us for our first Moon Night of 2026. Grab a chair and a blanket and head out under the stars! Our volunteers will have telescopes ready for a guided night sky exploration. Whether you're a seasoned stargazer or a first-timer, [...]
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2026 UC California Naturalist Course Registration:
Ralston Classroom 1170 East Highway 4, Arnold, CA, United StatesThe California Naturalist Program is returning to Calaveras Big Trees State Park for an unforgettable journey into the heart of the Sierra Nevada’s ecology. This immersive course combines an engaging science curriculum with hands-on field experiences, creative problem-solving, authentic citizen science projects, and meaningful community service. Program Dates Thursdays: May 28, June 4, 18 & [...]
$310.00 -
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Conservation Ambassadors’ Wild Things
Campfire CenterYour favorite wild neighbors are coming to the park A Special Event at Calaveras Big Trees The incredible team from Conservation Ambassadors' Wild Things is returning to Calaveras Big Trees State Park, and they're bringing some of the most fascinating animal ambassadors you'll ever meet up close. From a baboon who loves a good balance [...]