1. Location How do you describe where you are?

2. Relative Location Explaining where something is in relation to something else

3. Use compass directions to describe location relative to something else http://en.wikipedia.org

4. Relative Location The US is south of Canada Ohio is west of Pennsylvania Nebraska is northeast of Colorado http://www.freeworldmaps.net

5. Absolute Location Explaining where something is using a coordinate system

6. Absolute Location Explaining where something is using a coordinate system

7. Address 1666 West 29th Street, Erie, PA

8. Latitude Longitude System geographyalltheway.com

9. Based on a Sexagesimal system first used by Sumerians Places the earth on a coordinate plane

10. geographyalltheway.com Latitude and Longitude lines are a grid map system. But instead of being straight lines on a flat surface, Latitude and Longitude lines encircle the Earth, either as horizontal circles or vertical half circles

11. latitude geographyworldonline.com

12. longitude

13. http://www.eoearth.org

14. POSITIONING IN MGRS The Military Grid Reference Systems (MGRS) is an alpha-numeric system for expressing coordinates. A single alpha- numeric value references a position that is unique for the entire earth. Based on the Universal Transverse Mercator (UTM) grid system

15. Places the earth in the positive quadrant of a coordinate plane Based on a decimal system

16. 15SWC8081751205 http://earth-info.nga.mil

17. 15SWC8081751205 The first two characters represent the 6° wide UTM zone. ◦Leading zeros are included so that Zone 9 is “09”. ◦For polar areas outside the UTM area, these characters are omitted http://earth-info.nga.mil

18. 15SWC8081751205 The third character is a letter designating a band of latitude. ◦Beginning at 80°S and preceding northward, the 20 bands are lettered C through X, (omitting I and O) ◦The bands are all 8° high except band X, which is 12° high. ◦Outside the UTM are, A and B are used near the South Pole, Y and Z near the North Pole http://earth-info.nga.mil

19. 15SWC8081751205 The vertical UTM boundaries and horizontal latitude band boundaries form (generally) 6° X 8° Grid Zones. Hence, the first three characters of the MGRS value, e.g. “15S”, are referred to as the Grid Zone Designator (GZD)

20. 15S http://earth-info.nga.mil

21. 15SWC8081751205 The fourth and fifth characters are a pair of letters identifying one of the 100,000-meter grid squares within the grid zone (or UPS area).

22. http://earth-info.nga.mil15SWC8081751205

23. The remaining characters consist of the numeric Easting and Northing values within the 100,000-meter grid square http://earth-info.nga.mil15SWC8081751205

24. The first half refer to the Easting The second half refers to the Northing http://earth-info.nga.mil15SWC8081751205

25. MGRS coordinates may be rounded to reflect lesser refinement. For example: ◦15SWC8081751205 is at 1-meter refinement. ◦15SWC80825121 is at 10-meter refinement. ◦15SWC808512 is at 100-meter refinement. ◦15SWC8151 is at 1000-meter refinement. ◦15SWC85 is at 10,000-meter refinement.