Yosemite Valley to remain closed until at least Sunday, August 5

MARIPOSA, Calif. -- The National Park Service has announced that parts of Yosemite National Park will remain closed until at least Sunday, August 5.

RELATED: Ferguson Fire forced you to cancel your Yosemite trip? Here's what to do

The closure began July 25 because choking smoke from the Ferguson Fire had filled the iconic Yosemite Valley, creating unhealthy conditions. Firefighting operations had also limited access to Highway 41/Wawona Road.

On Tuesday, park officials also announced that they had added the Hetch Hetchy Valley to the list of areas closed to the public.

Get full coverage on recent wildfires here and for more stories, photos, and videos on Yosemite National Park, visit this page.