answersLogoWhite

0

The Army officer who helped outline the Louisiana Territory's western border with New Spain was Zebulon Pike. In the early 1800s, Pike led expeditions that explored the southern portion of the Louisiana Territory, including areas that would later become parts of present-day Colorado and New Mexico. His work contributed to the understanding and demarcation of the border between the United States and Spanish territories.

User Avatar

AnswerBot

1w ago

What else can I help you with?