What is a primary conservation challenge for Lake Tahoe?
Topic: Sierra Nevada
What is a significant threat to the Sierra Nevada’s forests?
Which organization focuses on preserving the Sierra Nevada’s environment?
What bird species is commonly found in the Sierra Nevada?
What is the most popular summer activity in Yosemite?
What is the typical vegetation in the subalpine zone of the Sierra Nevada?
Which naturalist is closely associated with the Sierra Nevada?
Who is credited with discovering Yosemite Valley?
What major gold discovery occurred in the Sierra Nevada?
Which photographer captured iconic images of Yosemite?
Which U.S. president established Yosemite as a protected area?
What is the nickname for the Sierra Nevada?
Which waterfall in Yosemite is among the tallest in North America?
What is the name of the volcanic formation in the Sierra Nevada?
What is the name of the glacial lake near Yosemite?
What percentage of California’s water supply comes from Sierra Nevada snowmelt?
What type of climate is most common in the Sierra Nevada?
What type of rocks dominate the Sierra Nevada?
What long-distance trail runs along the Sierra Nevada?
Which geological feature is common in the Sierra Nevada?
What is the best season for visiting Yosemite National Park?
Which activity is popular in the Sierra Nevada during winter?