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The first official expedition to explore the western frontier was Meriwether Lewis (1774-1809) and William Clark (1770-1838). They set out in May 1804 to explore and map the American West.
For detailed information cut and paste the below link.
I would like to suggest that the Native Americans were the first to explore the American West before Lewis and Clark.
Refer to: http://www.enchantedlearning.com/explorers/page/l/lewisandclark.shtml
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What do Angola french Guiana and the US and Portugal have in common?
they all were discovered by french explorers all but the US was discovered by french explorers...
How many years after the first Russian explorers visited Alaska did Alaska become a US states?
Alaska became a US state 83 years after the first Russian explorer visited Alaska. Alaska was sold to the US in 1867.
When European explorers first arrived in china what happened?
The first European explorers to arrive in China were greeted by the native Chinese. The explorers exchanged gifts and ideas. The European explorers took tea back to Europe.
Where was the plantation system first developed?
The plantation system was first developed by Portuguese explorers in West Africa.
What french explorers first explored Canada and the US?
Jacques Cartier was the first explorer to see and claim Canada for France. He was first among the Europeans to describe and map out the Saint Lawrence area.
Where Spanish explorers the first Europeans to arrive in what is now the US?
yes
Who were the first europeans to explore the southwestern part of US?
Spanish explorers were the first Europeans to explore the Southwest.
Where was the first mass celebrated in the US?
Catholic priests accompanied the earliest explorers and they said mass. So the first mass was said well before the US was the US.
Who were the first explorers of North American?
The Vikings were the first non-native explorers.
Who were the first explorers in Montana?
The first Explorers would be Meriwether Lewis and William Clark
What do Angola french Guiana and the US and Portugal have in common?
they all were discovered by french explorers all but the US was discovered by french explorers...
How many years after the first Russian explorers visited Alaska did Alaska become a US states?
Alaska became a US state 83 years after the first Russian explorer visited Alaska. Alaska was sold to the US in 1867.
When was the first guns brought to the US?
Spanish came with weapons into North/South America, so all early explorers had weapons.
Who was the first inhabitants of Texas?
The first known inhabitants of Texas, like the first inhabitants of most US states, were Native Americans.peanut
Who were the first explorers?
henry hudson jacques cartier Christopher Columbus zheng he
Where did the early explorers in US come from?
Europe.
When will explorers reach the north and south poles?
Explorers already have. There is a research station from the US at the south pole.
