The Six-Figure Grid Reference

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Presentation transcript:

The Six-Figure Grid Reference A 6-figure grid reference is a way of pinpointing a feature within a grid square. It is accurate to within 100 meters and deals with 100m2 of ground. A 6-figure GR is used when: 1. there are 2 or more of the same feature in a grid square, and 2. we need to be exact in giving a location. Level Three 419.03 OHP # 5

The Six-Figure Grid Reference A 6-figure grid reference divides a grid square into 100 small squares. Grid Square 7632 contains 5 bridges. How will you know which one to go to? Level Three 419.03 OHP # 6

Taking A 6-Figure Grid Reference Remember: “In the house, and up the stairs” Bridge #1: 1 block east of 76, 6 blocks north of 32. 6-Figure GR for Bridge #1: 761326 Level Three 419.03 OHP # 7

Use of a Romer A romer is used to accurately measure a six-figure grid reference. Place the corner of your paper on the landmark, and read off the 10ths. Example: House GR: 767328 Level Three 419.03 OHP # 8