YELLOWSTONE NATIONAL PARK, Wyo. (AP) — The opening of Norris Campground in Yellowstone National Park will be delayed because of the heaviest snowfall in a decade.

Norris Campground was scheduled to open Friday. But park officials Wednesday said 18 to 24 inches of snow cover the campground, making it inaccessible to campers.

Individual sites at Norris will open intermittently as the snow melts and conditions allow, with all sites expected to open in about two weeks.

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Current information on the status of Norris Campground: