Kansas became a state but lost considerable size and economic resources when eastern and central Colorado were carved out of Kansas Territory in 1861.

Called Colorado at 150, the reporting project marks Colorado's sesquicentennial — 150 years of Colorado statehood.

Mark Twain in July 1861 traveled through the northeast corner of what was then Colorado Territory, stopping briefly at a place called Overland City. It’s now called Julesburg. It lies along the South ...

In 1975, a group of neighbors gathered together to celebrate the history of Old Colorado City. Fifty years later, the festival lives on, having grown from a handful of friends to more than 100,000 ...

A detail from the front page of the Jan. 1, 1876, edition of the Daily Rocky Mountain News. (Image courtesy of the Colorado Historic Newspapers Collection, Colorado State Library) At the Denver ...

Add Yahoo as a preferred source to see more of our stories on Google. The Kansas Territory stretched all the way west to the Continental Divide in Colorado's Rocky Mountains when federal lawmakers ...