In the Sector Reference System, a USGS 1:24,000 scale topographic map is divided into how many sectors?

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Multiple Choice

In the Sector Reference System, a USGS 1:24,000 scale topographic map is divided into how many sectors?

The Sector Reference System overlays a simple grid on a USGS 1:24,000 map to make location descriptions quick and precise. It partitions the map into nine equal sectors by drawing two vertical and two horizontal lines, forming a 3-by-3 layout. This setup gives nine distinct sectors to reference, which is why the standard answer is nine. Other grid densities would produce six, twelve, or fifteen sectors, but those aren’t the configurations used for this map system.

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