SELECT "Altitude m" FROM table_11334 WHERE "Distance Medell\u00edn Downtown ( km )" = '42'
What is the altitude for the distance medellin downtown (km) is 42?
CREATE TABLE table_11334 (
    "Municipalities" text,
    "Extension km\u00b2" text,
    "Population (hab)" text,
    "Density (hab/ km\u00b2 )" text,
    "Altitude m" text,
    "Distance Medell\u00edn Downtown ( km )" text
)