Landscapes
Why Watersheds Link Places That Look Far Apart
Watersheds connect distant places through flowing water. Learn to trace a watershed on a map and see how ridges…
The report archive
All reports
Browse reports on regions, landscapes, borders, routes, and the resources places share.
Regions
Scale Bar or Grid Lines: Two Different Jobs on a Map
Scale bar or grid lines: learn which map feature estimates a route’s distance and which identifies a position, so you…
Routes
The Long Story Behind a Strait’s Name
Strait names can preserve language, navigation, and mapmaking choices; learn how to read them without mistaking one…
Borders
The Border-on-a-River Shortcut That Misleads Map Readers
A border-on-a-river map can imply a neat centerline that is not legally defined. Learn how to read its symbols and…
Resources
A Kitchen-Table Plan for Comparing Two Neighboring Regions
Compare two neighboring regions with one map scale and a shared feature list to spot differences in relief, routes…