Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_7246 ( "Rank" real, "Park" text, "Location" text, "Peak Name" text, "Elevation (ft)" real, "Minimum Elevation (ft)" text, "Vertical Relief (ft)" real )

### Question ###
What is the mean vertical relief in feet when the rank is more than 40 and the location is va0573?

### Accurate SQL ###

SELECT AVG("Vertical Relief (ft)") FROM table_7246 WHERE "Rank" > '40' AND "Location" = 'va0573'