Westcott GR-4 UTM Joint Plotter/Map Reader 5x6"

The Westcott GR-4 UTM Joint Plotter/Map Reader is a precision navigation tool designed for anyone who works with topographic maps and UTM coordinate systems. Measuring a compact 5 by 6 inches, it packs ten metric scales — ranging from 1:2400 up to 1:1,000,000 ONC — along with a full 360-degree protractor and a millimeter rule onto a single transparent, laminated sheet. This makes it possible to plot GPS coordinates, measure distances, and determine bearings on the most widely used military and civilian topographic chart formats without carrying multiple tools.

The scales are precision-engraved rather than printed, which means they resist fading and wear from repeated use in the field. Color coding differentiates the various scales at a glance, reducing the chance of reading the wrong one under pressure or in low light. The transparent construction lets you lay the plotter directly over a map grid and read both the coordinate lines and underlying map detail simultaneously. Whether you are a hiker plotting waypoints, a military navigator working with TOPO and JOG charts, or a student learning land navigation, the GR-4 provides a reliable, pocket-sized plotting solution that covers a broad range of map scales in a single instrument.