What is a locator (inset) map, and when to use one
Locator maps orient your reader by nesting a detailed map inside its wider geographic context. Here's how and when to use them.
Definition
A locator (or inset) map is a small reference map showing where a larger, detailed map sits — for example a country with the study region highlighted, beside a zoomed view of that region.
When you need one
Whenever your detailed map could be anywhere — a district, a watershed, a city. The inset prevents the reader from having to guess the location.
Doing it well
Keep the inset simple, highlight the focus area clearly, and connect the panels with an arrow. AcadGIS builds this multi-panel figure automatically.
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