These maps should allow you to piece together when certain areas were burned in Yosemite Valley. Not one map holds all the information, so if this interests you, I would look at each map. Some files are a bit older (2004), but two are updated to 2012...
This Yosemite map shows fire history in the park by decade from 1930 to 2013. It also shows Stanislaus National Forest and Sierra National Forest from 1908-2013.
These cards show three photos of fires in Yosemite National Park: a crown fire during the Rim Fire in 2013, a low-burning fire during the Avalanche Fire in 2011, and the back burn behind the Crane Flat campus during the Rim Fire.
Environmental challenge cards to accompany the Marine Mammal Adaptations activity. These cards tell you what challenge your species must face, and what adaptations you might be able to survive with.
Use these graphs and images as you teach about greenhouse gas emissions related to fire, carbon storage in the park, carbon losses related to catastrophic fire, and predicted stream flow changes affecting fire season.
Graph demonstrating the Hydrology of Yosemite (timing of precipitation vs. discharge) and pictures of how the snow line would change with an increase in temperature.