FRESNO, Calif. (AP) — A San Diego woman who painted and drew on treasured natural rock formations at national parks across the West and shared her work on social media has pleaded guilty to defacing government property.

Twenty-three-year-old Casey Nocket pleaded guilty Monday in a federal court in Fresno, California to seven misdemeanors for the fall of 2014 painting spree at seven national parks including Yosemite in California and Zion in Utah. She also admitted to defacing rocks at Crater Lake National Park in Oregon and Rocky Mountain National Park in Colorado.

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Nocket used Instagram and Tumblr to document her graffiti-like work, which led to outrage on social media. She was sentenced to two years' probation and 200 hours of community service. A later hearing will determine how much restitution she must pay.