You will learn how Boulder’s iconic Flatirons formed. Turns out, Boulder was once beachfront property. The Flatirons are Boulder’s favorite portion of the Fountain Formation, a geological formation of mostly red sandstone. This sandstone, more appropriately called “arkose” gets its color from the pinkish feldspar contained it it. This red rock makes up the Red […]
Boulder to DIA in Record Time: Your Ultimate Guide for the Winter and Holiday Rush 
Boulder’s Dog of the Day: A Husky’s Adventures Under the Flatirons 
Faces of Boulder: The Zen Climber Preparing for the Next Ascent 
Boulder’s Wonderland Hills: Where Nature Meets Neighborhood Charm 
Boulder’s Little Foodies Paradise: A Guide to Kid-Friendly Dining 
From Boulder to Backstage: Lisa Siciliano’s Black-and-White Portrait of Alice Cooper 
The Boulder Bubble: 15 Reasons Why This City is the Happiest in America 
![](https://aboutboulder.com/wp-content/uploads/2018/07/2-2.png")
