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Colorado State Publications Blog

How Geology Helped Build the Moffat Road

Our library recently received a fascinating new document for our collection that will be of interest to historians researching Colorado’s railroads as well as to those interested in our state’s geology and mineral resources. Exactly one hundred years ago, in 1918, a special committee of the Denver Civic and Commercial Association asked State Geologist Russell […]

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Colorado State Publications Blog

Time Machine Tuesday: The History of Colorado's Highways

Today we take for granted the fact that highways can take us pretty much anywhere we want to go. But in the first half of the 20th century, that wasn’t the case. As automobiles grew in popularity, the need arose for a system of highways that could support ever-increasing numbers of vehicles. While the construction […]

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Colorado State Publications Blog

Time Machine Tuesday: Hayden Survey

For something a little different today, instead of profiling a historic document that has been digitized, I’m instead going to introduce you to a brand new digital publication — but one that sends the reader on a journey from the past to the present. Hayden’s Landscapes Revisited:  The Drawings of the Great Colorado Survey, by […]

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Colorado State Publications Blog

Time Machine Tuesday: Colorado Highway Maps

What was it like to travel around Colorado before I-25, I-70, and the other major highways?  Colorado had a network of smaller roadways — which probably allowed visitors a more scenic view of the state than we have today!  The Colorado Department of Transportation has digitized a number of its old state maps, which have […]

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Colorado State Publications Blog

Time Machine Tuesday: Oil and Gas Fields of Colorado

Most Coloradans know that oil and gas production has skyrocketed in Colorado, but a 1975 resource from the Colorado Geological Survey illustrates the industry’s development visually and using statistics.  Oil and Gas Fields of Colorado includes two parts:  a map, and a book of statistical data.  You can see how much the industry has expanded […]

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Colorado State Publications Blog

GIS Maps and Data

The Colorado Demography Office offers a number of resources regarding population data.  Some of these have been explored previously in this blog. Today, however, I wanted to highlight their GIS maps and data, located on their State of Colorado: GIS Directory website.  This site gathers many of the Colorado state agencies’ GIS maps together in […]

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Colorado State Publications Blog

Time Machine Tuesday: Oil and Gas in Colorado, 1925

Where was oil found in Colorado in the early days of the automobile?  How do different parts of the state compare in oil and gas production based on geological epochs?  A 1925 map (reprinted in 1984) from the Colorado Geological Survey answers these questions and more.  Although the early map did not use color, it […]

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Colorado State Publications Blog

Colorado Points of Interest

As you travel through Colorado, you will find numerous markers designating points of interest.  Some of these are historical, and others geological. Historical – History Colorado (formerly the Colorado Historical Society) places and maintains point of interest markers in places where important historical events occurred around the state.  Our library recently acquired an interesting Historical Society publication done in 1972.  […]

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Colorado State Publications Blog

Find Your Legislators

It’s mid-way through the Session.  Do you know who your Legislator is?  If not, colorado.gov can help.  Simply go to the Who is my Legislator? webpage and click on the link to the colorado.gov map resource.  Once there, you can zoom in on the map down to the block level.  Then choose whether you want to find […]

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Colorado State Publications Blog

Demography Map Gallery

The Colorado State Demography Office has added a new Map Gallery to their website.  The gallery features maps with census information, poverty data, household income, state-to-state migration, and more.  The maps are interactive and customizable.  The gallery also includes several apps which, according to the Demography Office, “Compare 2010 Census vs 2000 Census with a […]

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Colorado State Publications Blog

Colorado Geology for Tourists

Are you taking a road trip through Colorado this summer?  Looking for something to do with out-of-town guests?  Or just interested in our state’s natural history?  Then check out the Tourist Guide to Colorado Geology from our library.  Published by the Colorado Geological Survey, the Tourist Guide is an easy-to-read guide to discovering some of […]

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Colorado State Publications Blog

Hayden Expedition

The famous Hayden Expedition of 1871, led by geologist Ferdinand V. Hayden, was instrumental in surveying and mapping what would become Yellowstone National Park the following year.  The survey expedition, which took about four months over the summer of 1871, was funded by Congress.  Six years later, in 1877, Hayden and his team surveyed Colorado and […]

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Colorado State Publications Blog

Historical Maps

The Colorado State Archives features a website of historical maps of Colorado and the U.S. Here you can view an 1895 map of Colorado, historic maps of Colorado cities and towns, and much more. Also on this site you can find a 1795 map of the “Interior Parts of North America,” an 1855 map of […]

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Colorado State Publications Blog

Colorado Geology Map for Tourists

If you’re taking a road trip through Colorado this summer, you might want to check out the Colorado Geological Survey’s Tourist Guide to Colorado Geology, brand new this year. This fun and easy-to-use map instructs tourists and visitors on the various elements of the geology of Colorado. You can learn the names and ages of […]

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Colorado State Publications Blog

Demographic Information Maps

The Colorado Dept. of Local Affairs’ Demography Section has added a new page to their website, the Thematic Map Gallery. This very interesting site offers a variety of demographic maps. These include historical maps illustrating population back to 1880 as well as “night sky maps” that illustrate the clusters of light at nighttime that indicate […]

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Colorado State Publications Blog

Colorado's Hot Spots

Do you know where the hottest spot in Colorado is? According to the Colorado Geological Survey, the hottest spot in the state isn’t Denver, Aspen, or Vail but a large area between Cortez and Montrose, Colorado. To find out other hot spots in Colorado check out the Heat Flow map on the Colorado Geological Survey […]