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Making North America

Across
Famous type of stone tip
This happened in the Pacific Northwest in 1700
Where first "Americans" came from
Cause of rising sea levels
Studies earthquakes
A land bridge
Gold from West makes this possible in the East
Here you can find fossils immersed in oily mud
They found a million pounds
Animal not many people realize lived in North America
Geological phenomena that brought gold to surface of Earth
Describes a group of people that moves
A land bridge connected Siberia to this place
First permanent dwelling in North America?
Down
14,000 years ago in North America
Mineral in which gold was found
Main source of food for 10,000 years
Name of the San Francisco mint
Crop the colonists grew
Located off the coast of Oregon
Vehicles first Americans may have relied on
Name of east-west railroad
First known man in North America
Silt, sand, and clay
What the earth will be in 175 million years
Mountain range that impeded progress of railroad in West
Create carbon dioxide
Nationality of railroad laborers
Before metal