1.   Early explorers used to navigate by the stars.

2.   Had early explorers come from the southern hemisphere, would our maps appear upside down?

3.   To a town dweller the silence is eerie - so this is how the wilderness felt to the early explorers and settlers.

4.   The coastline was mapped by early explorers.

5.   Among the early explorers of the underground, Hahn said, were a group of police officers who traveled by raft through a flooded PATH tunnel from New Jersey.

6.   As I continued, Comanche Peak, a landmark used by Indians and early Spanish explorers, appeared on the left.

7.   Dakota Territory was named after the Indian people first encountered by the early explorers.

8.   Early explorers found taste receptors more populous in some regions of the tongue than in others.

9.   Early explorers gradually beat a road through the forest.

10.   Early Spanish explorers wrote about them in South America, and Chinese legends tell of them, too.