CREATE TABLE table_25235 ("Rnd" FLOAT, "Date" CLOB, "Race Name" CLOB, "Length" CLOB, "Track" CLOB, "Location" CLOB, "Pole Position" CLOB, "Winning Driver" CLOB)

Which locations did Gordon Johncock hold the pole position?
SELECT "Location" FROM table_25235 WHERE "Pole Position" = 'Gordon Johncock'
SELECT "Location" FROM "table_25235" WHERE "Pole Position" = 'Gordon Johncock'