Which two major geographic features provided the east and west boundaries of this piece of land

The two major geographic features provided on the east and west boundaries of piece of land are:

1. The land is "Louisiana Purchase".

2. The east boundary is "Mississippi".

3. The west boundary is "The Rockies".

Explanation: The Louisiana purchase is a piece of land of about 530,000 acres which was sold by France to the US President which was Thomas Jefferson in 1804.