Wind River Canyon

The Wind River Cabins are a great spot to relax and enjoy the beauty.

Driving this Wyoming canyon in winter can be a real white-knuckle experience.

According to a statement on social media, the agency said a big rock and some smaller rocks fell near milepost 122.7.

The sheriff's office expressed condolences to the unnamed boy's family.

Flooding has also caused damage and displaced families in communities such as Sheridan.

Officials say at this time of year coming into spring, the cycle of freezing and thawing causes rocks to move downhill.

WYDOT officials said previously that they wanted the rock down before winter.

Drivers can expect 15-minute delays through Friday as workers prepare for blasting followed by cleanup.

They had just stopped for one slide, when they caught the second.

The highway was reopened early Wednesday morning.