Which influence did the Mississippi River have on New Orleans in the 1820s? It helped the city become the second largest port in the country for crops and products.

It isolated the city from other cultures and outside influences, allowing for a strong, uniform culture in the city.

It served as an invasion route for the American military in its bid to gain control of New Orleans and Louisiana from the Spanish.

It forced the city to relocate further upstream after constant flooding of the river.