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Each semester the Musuem presents lectures relating to a subject in natural history. They have covered a wide subject range over the years. These are usually held once a month in Room 111, Sewell Hall.

Dinosaur Day

Our first Dinosaur Day was held on Mother's Day in 1998 and there have been nine since. In 2003 and 2005 there were 1400 attendees for each fun-filled family event. In March 2007, 2009, 2011 & 2013 the number of attendees jumped to between 3000 and 4000. In the early years of Dinosaur Day we were all about dinosaurs. The event has now become Dinosaur Day Science Fest, an educational event for the entire family. It showcases the diversity of science, peoples relationship to our world, and the exciting frontiers ahead of us, with the hope of sparking interest in science, technology, engineering and math. Come May 4, 2014, be inspired!

California Native Plant Sale and Wildflower Show

Every spring the California Native Plant Sale and Wildflower Show is held outside Sewell Hall. This is an opportunity to see and buy native plants as well as posters, books and apparel.


Occasionally we have educational and entertaining workshops on a wide range of subjects. In the past we have hosted Placer’s Future: This Land is Your Land, the Petrified Wood Identification seminar, Aquatic Insect Monitoring workshop, Birds of Prey workshops, Sandhill Cranes Tour and others.

Sierra Nevada Presentations

While not Museum sponsored, the Interdisciplinary class on the Sierra Nevada had a lecture every week. They were given by an expert on some aspect of the mountain range directly to our east. The class is not currently offered, but older presentations are available on iTunes U.

Take me to Sierra College on iTunesU
(This will launch iTunes.)

Under Courses, Interdisciplinary has the presentations.

If you need to get the latest, free iTunes player for Mac or PC, go here:
(If needed, open iTunes preferences and set to show Podcasts).

As part of the new Sierra Science Speaker Series, the Nevada County Campus welcomes Steve Rothert in a discussion titled "Restoring Salmon to the Upper Yuba."  This presentation and discussion will be held on Tuesday evening, April 8, from 6:30–7:30 pm, in the Multipurpose Center, building, N-12. Come early and enjoy a meet-and-greet and refreshments at 6:00 pm.

Summary of presentation: Since before 2000, river advocates, scientists and dam owners have been studying and litigating whether and how to restore salmon and steelhead trout runs to the Yuba River above Englebright Dam, which has blocked fish from reaching the upper Yuba since 1940. River advocates have been inspired by the vision of restoring salmon to their home waters in the Sierra Nevada to spawn for the first time in nearly a century, while dam owners objected for fear of the costs they would incur in such folly, and scientists wondered if it could even be done.  After numerous studies over 15 years and costing more than $10 million, we believe the data say “Yes we can”.  This presentation will tell the story of what salmon seek in spawning habitat, what the North, Middle and South Yubas offer them, and how we might get salmon returning from the ocean up there to spawn and their offspring back out to the Pacific. 

About the speaker: Steve Rothert earned his B.S. in ecology from UCLA and his M.S. in river sciences from UC Berkeley. He was the director for the Southern Africa Program for International Rivers Network based in Botswana, was Director of the national Hydropower Reform Coalition, and served as a Peace Corps Volunteer in the fisheries program in Sierra Leone, West Africa. Steve joined American Rivers in 2001 and in 2002 began serving as Director of American Rivers' California Regional Office. In addition to overseeing office operations, he manages American Rivers' programs in California related to hydropower reform, anadromous fish restoration, dam removal, climate change and water supply.

This presentation is free, and the public is welcome and encouraged to attend. The Nevada County Campus is located at 250 Sierra College Drive, Grass Valley, CA 95945. Parking is $3 on campus and can be purchased at the kiosk machine at the main entrance to the campus. For more information about this presentation and others in this series, contact the series coordinator, Jason Giuliani at:

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