Which of the following was a major historical claim to Oregon by the United States?

Zebulon Pike explored the Willamette Valley in 1803.

American Robert Gray journeyed up the region’s major river in 1792.

John Jacob Astor discovered gold on the banks of the Columbia River in 1818.

The American army established forts along the region’s major rivers by 1800.

What was the Santa Fe Trail primarily used for in the beginning?

to resupply American forts in the Southwest

to bring Mexican colonists to the Great Plains region

to bring American settlers traveling to California

to carry on trade with the local inhabitants of the Southwest

2 Answers

  • Its all bout the gold rush. #3 on the first, #3 on the second.

    Source(s): I LIKE GOLD!!
  • 1.American Robert Gray journeyed up the region’s major river in 1792

    2.To carry on trade with the local inhabitants of the Southwest

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