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_23185 ( "Rank" real, "Mountain Peak" text, "Mountain Range" text, "Elevation" text, "Prominence" text, "Isolation" text )

### Question ###
How many different isolation numbers does the Jack Mountain peak have?

### Accurate SQL ###

SELECT COUNT("Isolation") FROM table_23185 WHERE "Mountain Peak" = 'Jack Mountain'