Want to learn more about grassroots mapping? Read this post about the burgeoning movement and the Public Laboratory for Open Technology and Science.
All images have been dedicated to the Public Domain, or used with permission by the photographers/cartographers.
Special thanks to Jeff Warren, Stewart Long, Liz Barry, Ray Cha, and all of the grassroots mappers who are building a cartographic movement that makes a difference, and for providing their images and expertise here.

















Obsessive-compulsive disorder, OCDPhoto credit 
Oral Wegovy pills were approved by the Food and Drug Administration in December 2025 and became available for purchase in the U.S. in January 2026.
Despite the effectiveness of GLP-1 drugs for weight loss, there is still no replacement for healthy lifestyle patterns, including regular exercise.


Europa Regina (1570).
The ‘Military Mapping Maidens’ created tens of thousands of maps during World War II.
A high school senior shows how to unlock a magnetic pouch that holds her smartphone at University High School Charter in Los Angeles in March 2025.
An eighth grader unlocks her cellphone from a pouch at Mark Twain Middle School in Alexandria, Va., in March 2025.
Gif of a mom wiping her child's dirty face via