What did we do?

To find out, I decided to make it into an event. Six of my friends hiked through the mountains on a trail I marked. One team of three carried a GPS, or global positioning system. The GPS reads satellite signals to tell you your location on the Earth. The other team used a map and compass. There were 5 destinations that each team had to reach along the way. At each flag location, they took a 10 minute pit stop to record the distance they traveled, the time it took to get there and any other observations. At the end, the two teams compared notes. more...