When you go someplace cool, social media law requires that you post a photo of it on Instagram. And in South Dakota, that cool place is the Badlands.

A travel website analyzed millions of photos on Instagram to determine which location in every state produces the most hashtags for Instagram posts. When it comes to The Rushmore State, the most photogenic location is the Badlands National Park. As of this posting, there are nearly 9,000 posts on Instagram with the hashtag #badlands