House-sized boulder blocks highway in Zion National Park
![House-sized boulder blocks highway in Zion National Park](http://bloximages.chicago2.vip.townnews.com/lacrossetribune.com/content/tncms/assets/v3/editorial/b/1a/b1abad77-70bc-5260-8fd1-3ad987987ed7/57aca492beb54.image.jpg?resize=300%2C225)
ZION NATIONAL PARK, Utah (AP) — A boulder the size of a house tumbled onto a highway in Utah's Zion National Park after a major thunderstorm, partially closing the roadway during the popular summer season.