CREATE TABLE table_66021 ("Peak" TEXT, "Country" TEXT, "Elevation  ( m ) " FLOAT, "Prominence  ( m ) " FLOAT, "Col  ( m ) " FLOAT)

Which Col (m) has an Elevation (m) smaller than 1,624?
SELECT MIN("Col (m)") FROM table_66021 WHERE "Elevation (m)" < '1,624'
SELECT MIN("Col (m)") FROM "table_66021" WHERE "Elevation (m)" < '1,624'