You are likely referring to Mount St. Helens, which is known for its crater, not simply "Mount Crater".

Here are the dimensions of Mount St. Helens' crater:

* Diameter: Approximately 2 miles (3.2 kilometers)

* Depth: About 2,000 feet (610 meters)

Important Note: These dimensions are approximate and can change slightly over time due to volcanic activity and erosion.

If you have any more questions about Mount St. Helens, please feel free to ask!