Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
In Silver Bow County, Montana, when the capicity is more than 45 tons, what's the highest rank found?

### Inputs:
table_name: table, columns: ['Rank', 'Mine', 'County and State', 'Operator', 'Source of copper', 'Capacity (thousands of metric tons)']

### Response:
SELECT MAX Rank FROM table WHERE County and State = silver bow county, montana AND Capacity (thousands of metric tons) > 45