40o48”N 96o40”W

Most well known grid system is latitude and longitude

Latitude Basics1. Distance North or South 2. Always parallel 3. Also called Parallels4. Total of 90 degrees

Major Lines of Latitude

Longitude Basics

1. Lines of longitude + prime meridian

2. East & West of the prime meridian

4. Physical distance

5. 180 degrees

Laser projected from the Royal Observatory in Greenwich marking the Prime Meridian

How to Read Latitude and Longitude

• All lines are divided up into degrees, minutes, and seconds.

One line of Lat/long

One line of Long or Lat is then divided into 60 minutes

Each minute is divided into 60 seconds

10o

11o

How to read Lat and Long

• Lat is always first and Long is second.

• You always use lat first and use the direction NESW to indicate which direction to go.