The Rim Fire has threatened two groves of giant sequoias that are unique in the region, prompting park employees to clear brush and set sprinklers around the huge trees.
While sequoias have a chemical in their bark to help them resist fire, they can be damaged when flames move through slowly.
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A shot of a chameleon using its tongue to grab dinner has snatched a top photography award.
One story dominates Thursday's front pages with some newspapers printing emotive pleas to voters to keep the United Kingdom as one.
After a mild start temperatures should pick up, with the south of England seeing highs of 26C.