Form hypothesis= You are visiting a mountain in the northwest part of the United States. The mountain has steep sides and is not part of a mountain range. A crater can be seen at the top. Hypothesize about what type of mountain you are visiting.

This mountain is likely to be a volcanic mountain.

Based on the given information, we can form a hypothesis about the type of mountain you are visiting.

Firstly, the fact that the mountain has steep sides and is not part of a mountain range suggests that it is likely a standalone mountain, commonly known as a solitary mountain or a monadnock.

Secondly, the presence of a crater at the top is an interesting observation. Craters are usually associated with volcanic activity or impact events. Therefore, we can hypothesize that the mountain you are visiting is a volcanic mountain, formed by volcanic eruptions, rather than a non-volcanic type such as a fold or fault-block mountain.

Based on these hypotheses, a possible conclusion could be that the mountain you are visiting is a volcanic monadnock, which formed through volcanic activity and erosion. However, it is important to note that this is just a hypothesis and further investigation would be required to confirm the exact type and origin of the mountain.