Yosemite's Mariposa Grove is home to more than 500 giant sequoias, including a famous one with a tunnel cut into it more than a hundred years ago.
A ceremony marking the park's sesquicentennial will take place Monday in the Grove. Last Friday, Insight host Beth Ruyak went there to talk with visitors and guides.
On Monday's Insight, Beth will give you a tour of the Mariposa Grove and other sites at Yosemite. Plus she'll talk with officials about the park's $36 million restoration project.