Caitlin Dempsey

Caitlin Dempsey is the editor of Geography Realm and holds a master's degree in Geography from UCLA as well as a Master of Library and Information Science (MLIS) from SJSU.
Map showing major rivers in the world that form international borders.

Rivers as Borders

Caitlin Dempsey

23% of international borders are rivers.

A geyser eruption with visitors standing on the boardwalk watching.

Geography Facts About Yellowstone National Park

Caitlin Dempsey

Learn some quick and fun geography facts about Yellowstone National Park.

Photo of the beach at Westward Ho! in England.

Only Two Towns in the World Have an Exclamation in Their Name

Caitlin Dempsey

Only two towns in the world have an exclamation mark as part of their formal names.

Laptop with QGIS, a desktop GIS software program

Six Things You Should be Doing to Enhance Your GIS Career

Caitlin Dempsey

Here are six focus areas you should be working on to further your GIS career.

Earth cake

GIS Day and PostGIS Day Are Coming Up

Caitlin Dempsey

November 18, 2020 marks the 21st anniversary of GIS Day. The following day is PostGIS Day.

A corn field in Iowa.

Geography of Corn in the United States

Caitlin Dempsey

The United States produces one-third of the world's corn.

Black and white Map from 1924 created by the US Post Office Department showing the First Transcontinental Air Mail Route stretching from New York to San Francisco.

Using Giant Arrows to Guide Airmail Flights

Caitlin Dempsey

The Transcontinental Airway System guided nighttime airmail flights before the invention of radio navigation and GPS.

Rhyolite banding, Pinnacles National Park, 2014.

Geography of Igneous Rocks in the United States

Caitlin Dempsey

About 15% of the Earth's present land surface is made up of igneous rocks.

Natural-color image of Imja Tsho and surrounding glaciers. Source: Advanced Land Imager (ALI) on NASAโ€™s Earth Observing-1 (EO-1) satellite, October 4, 2010.

Melting Glaciers and Larger Lakes

Caitlin Dempsey

A global survey that used satellite data has determined that overall, glacial lakes have increased in volume almost 50% since 1990.

California ground squirrel sitting on the trunk of a fallen oak tree.

Camouflage: Ways Animals Blend in With Geography

Caitlin Dempsey

Camouflage is a way for animals and insects to blend in with their surroundings in order to avoid detection.

The eruption within Halema'uma'u, at Kฤซlauea summit within Hawai'i Volcanoes National Park. Photo: USGS web cam, public domain.

Geography Facts about Kฤซlauea

Caitlin Dempsey

Kฤซlauea is the youngest and most southeastern volcano on Hawaii island.

Great Springs and the Roe River in Montana.

The Shortest River in the United States

Caitlin Dempsey

The shortest river in the U.S. is Montana's Roe River, which stretches only 201 feet.

A bunch of different pumpkins.

Geography of Pumpkins in the United States

Caitlin Dempsey

Pumpkins are a popular gourd for Halloween and Thanksgiving in the United States.

Ground disturbance in southern California after the January 17, 1994 Northridge earthquake.

Geography Facts About Earthquakes

Caitlin Dempsey

Learn about where earthquakes occur on Earth.

Map of Mongolia. Source: CIA, 1996.

Which Country is the Least Densely Populated?

Caitlin Dempsey

Found out which country is the least densely populated and which territory is the least densely populated in the world.

A Joy Plot of the San Francisco Bay Area. Created using Peak Map.

Making Joy Plots with GIS

Caitlin Dempsey

Joy plots is a cartographically creative way to show topography on a map. Learn how to create joy plots using GIS.

The current US Exclusive Economic Zone is delineated by yellow outlines. As of January 2021, 53 percent of the United States' ocean, coastal, and Great Lakes waterways were unmapped. Map: NOAA Integrated Ocean and Coastal Mapping.

53% of U.S. Ocean, Coastal, and Great Lakes Waters are Unmapped

Caitlin Dempsey

According to a new report by the United States' federal Interagency Working Group on Ocean Coastal Mapping, 53 percent of the country's ocean, coastal, and Great Lakes water is still unmapped.

One source of uranium and radon in the Denver Basin aquifer system is sediments from the Pikes Peak granite, which have been weathering for millions of years.

Geology Quick Facts for Each U.S. State

Caitlin Dempsey

Listed here are the official state rock, gemstone, mineral, and fossil for each U.S. State.

Geography Quotes

Caitlin Dempsey

A collection of geography related quotes.

Map showing the mean population centers between 1790 and 2010. Map: U.S. Census Bureau.

Population Geography of the United States

Caitlin Dempsey

The United States represents a vast area of land with 3.79 million square miles (9.83 million square kilometers) in size.   A ...

[Map of California shown as an island], Joan Vinckeboon, ca. 1650.

California as an Island

Caitlin Dempsey

Well into the 17th and 18th centuries, cartographers created maps of the region showing California separated from the mainland by a strait.

For a few weeks during the spring months in the Gulf of Carpentaria in Australia, Morning Glory cloud formations can be seen. Map showing the location of the Gulf of Carpentaria in Australia. Map: Equal Earth Physical Map, public domain.

These Clouds Only Predictably Form in Australia

Caitlin Dempsey

Morning Glory clouds are a unique and rare cloud formation only predictably seen in the Gulf of Carpentaria in Australia during spring.

Tufted Titmouse (Baeolophus bicolor). Photo: National Park Service, Public domain.

Kleptotrichy: Birds Who Steal Fur

Caitlin Dempsey

Scientists recently released their findings on why birds pull fur from animals, which is a potentially risky behavior.

Satellite image showing the McKay Creek fire (left) and the Sparks Lake fire (right) on June 20, 2021 in British Columbia, Canada.

2021 Wildfires in the U.S. and Canada

Caitlin Dempsey

Climate change is causing wildfires to burn longer and more frequently in some northern latitudes.

A bison cow with her calf. Photo: Jesse Achtenberg, U.S. Fish and Wildlife Service. Public domain

Geography of American Bison

Caitlin Dempsey

Learn about the American Bison, which once roamed North America in large herds.

Fact sheet with Landsat image for the state of Hawaii.

States in Order of Admission to the United States of America

Caitlin Dempsey

Learn the order in which each state was admitted to the United States as well as some geography facts.

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