Boulder United States

Boulder is a city in Colorado (CO), United States

In geology, a boulder is a rock fragment with size greater than 25.6 centimetres (10.1 in) in diameter. Smaller pieces are called cobbles and pebbles. While a boulder may be small enough to move or roll manually, others are extremely massive. In common usage, a boulder is too large for a person to move. Smaller boulders are usually just called rocks or stones. The word boulder is short for boulder stone, from Middle English bulderston or Swedish bullersten.

Top sights in Boulder
Flatirons 39.986616 / -105.293884
Chautauqua Park 39.999200 / -105.281500
Pearl Street Mall 40.017665 / -105.279589
Eldorado Canyon 39.928976 / -105.294100
Boulder Creek Path 40.015038 / -105.280942
University Of Colorado At Boulder 40.007581 / -105.265942
National Center For Atmospheric Research - Ncar 39.978318 / -105.275031
Flagstaff Mountain 40.001652 / -105.307491
Avery Brewing Company 40.062563 / -105.204743
Boulder County Farmers Market 40.015598 / -105.277421
Mount Sanitas Trail 40.027273 / -105.300693
Boulder Public Library 40.013952 / -105.281769
Mesa Trail 38.845731 / -104.885903
Folsom Field 40.009475 / -105.266905
Boulder Beer Company 40.026572 / -105.248057
Dairy Arts Center 40.019283 / -105.261195
Fiske Planetarium 40.003591 / -105.263446
Valmont Bike Park 40.031840 / -105.233531
Upslope Brewing Company 40.020271 / -105.218384
Boulder Falls 40.004712 / -105.405861
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