Grand Canyon National Park Superintendent Christine Lehnertz, seen in 2017 with then-Interior Secretary Ryan Zinke, was recently cleared of allegations of workplace harassment.
The safety director at Grand Canyon National Park says people may have been exposed to radiation from three buckets of uranium ore that sat for years in a museum collection building. Whether the amount of exposure was unsafe has not been determined.
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Designed by famed architect Mary Colter, Phantom Ranch opened in 1922. Over the years, it's been staffed by countless "ranchers," as they call themselves, who live and eat together, only spending a few days above the rim each month.
Flooding and the combined traffic of thousands of cars, trucks and RVs have torn up the roads at Joshua Tree National Park's Black Rock Canyon Campground. The majority of the park's $60 million maintenance backlog is for roads like this.