The Rocky Mountains stretch 3,000 miles from northern Alberta and British Columbia in Canada, all the way to which state in the southern part of US?

A New Mexico
B Colorado
C California
D Montana

B Colorado

To find the answer to this question, we need to identify the location of the Rocky Mountains and determine which state they extend to in the southern part of the United States.

First, let's understand where the Rocky Mountains are located. The Rocky Mountains are a major mountain range that extends across western North America. They span several US states and Canadian provinces.

Since this question mentions that the Rocky Mountains stretch from northern Alberta and British Columbia in Canada, we can infer that the range extends southward into the United States.

Now, let's analyze the given options:

A) New Mexico: New Mexico is a state in the southwestern part of the United States, but it is not located in the southern part of the Rocky Mountains. Therefore, it is unlikely to be the correct answer.

B) Colorado: Colorado is a state that lies in the central part of the Rocky Mountains. It is famous for its prominent peaks and beautiful alpine landscapes. As such, it is a strong contender for the correct answer.

C) California: California is located on the western coast of the United States, far away from the Rocky Mountains. It is not a part of the range. Hence, we can eliminate it as a potential answer.

D) Montana: Montana is a state that shares a border with the Canadian province of Alberta. It is also located in the northern part of the United States. Therefore, it is not in the southern part of the Rocky Mountains, making it an unlikely choice.

Based on this analysis, the most likely correct answer is B) Colorado.