CREATE TABLE table_name_21 (rank INT, county_and_state VARCHAR, capacity__thousands_of_metric_tons_ VARCHAR)

In Silver Bow County, Montana, when the capicity is more than 45 tons, what's the highest rank found?
SELECT MAX(rank) FROM table_name_21 WHERE county_and_state = "silver bow county, montana" AND capacity__thousands_of_metric_tons_ > 45
SELECT MAX("rank") FROM "table_name_21" WHERE "capacity__thousands_of_metric_tons_" > 45 AND "county_and_state" = "silver bow county, montana"