Borders
When a Border Follows a River, Which River Line?
Learn how a river border is defined by treaty language, surveyed coordinates, or a named channel, and how to read the…
topics
Borders
Explore the lines that divide places and the ideas behind them.
Our point of view
Geography starts with looking closely
A map is a useful beginning, not the whole place. We connect its lines and labels to the landscape and human choices they represent.