Geography Basics

Geography is the study of the Earth’s physical and human features, their spatial relationships, and the processes that shape them. It is a broad and interdisciplinary field that incorporates elements of natural science, social science, and the humanities.

Geographers seek to understand the complex interactions between the natural environment and human societies, and the ways in which these interactions vary across different regions and cultures.

This category contains articles about introductory concepts in geography. Find resources, books, lesson plans, and maps for teaching geography to all ages. A fun way to learn about geography is through the use of quizzes which are also listed in this category.

Regional map of the terrestrial ecosystems of the contiguous United States. Source: NatureServe, 2025.

High Resolution Ecosystem Map of the Contiguous United States and Adjacent Areas

Caitlin Dempsey

NatureServe has developed an updated 30-meter hexagon map of regional ecosystems in the contiguous United States and adjacent areas.

An oblique photo from the International Space Station of Lake Chapala in Mexico.

Lake Chapala: a Tectonic Lake at Mexico’s Triple-graben Intersection

Caitlin Dempsey

Lake Chapala was formed at the intersection of three grabens.

Map of the location of Point Barrow.

Northernmost Point in the United States

Caitlin Dempsey

Above the Arctic Circle, Point Barrow is the northernmost point in the United States.

Mapping Migration to Twin Falls From Other U.S. Citie, 2016-2020. Data: U.S. Census Bureau, Natural Earth. Map: Caitlin Dempsey.

How to Create a Radial Flow Map Using QGIS

Caitlin Dempsey

Learn how to create a radial flow map in QGIS to visualize migration using metro-to-metro data from the U.S. Census Bureau.

A shaded relief map highlighting Alaska and the lower 48 states with the surrounding countries muted with a semitransparent white overlay.

Only State… Geography Facts

Caitlin Dempsey

Here are some interesting geography facts that are unique to individual U.S. states and do not occur in any other state.

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