Resources-Geographic Factors

Southern Overland Routes

California Gold & Mercury Poisoning

Rivers as a Resource

Acid Mine Drainage

Learning from the rocks

Big Blackfoot

Gold Rush & Mercury Poisoning

Removing Toxic Metals

Santa Fe Trail

Kansas

• Fort Larned
• Fort Coon
• Fort Dodge
• Fort Mann

Oregon Trail - Fun Facts

View of Donner Lake Painting , Donner's Pass-today

geography & biomes- main limiting factors contributing to biome type are annual temperature range and average annual precipitation.