You want to check out the Moods of California exhibit at the Irvine Museum, if you are near Irvine, CA
Some nice Sierra paintings. Only one Yosemite painting, but it is a great one by Thomas Hill.
The Thomas Hill painting is similar to this one of Yosemite Falls

http://www.thomas-hill.org/Bridle-Veil-Fall-Yosemite.html

It is strangely named Bridal Veil Fall on the page above.
Here is info on the Moods of California exhibit

http://irvinemuseumcollection.uci.edu/event/moods-of-california/