SELECT MIN(_number_s_lake_and_gnis_query_link) FROM table_17978052_2 WHERE borough_or_census_area = "Valdez-Cordova (CA)"
Berapa jumlah danau yang ada di daerah Valdez-Cordova (CA)?
CREATE TABLE table_17978052_2 (_number_s_lake_and_gnis_query_link INTEGER, borough_or_census_area VARCHAR)