Question: Which station that sat 54m above seal level is now closed?
SQL: SELECT "Station" FROM "2-1799173-3" WHERE "Height above sea level (m)" = '54m' AND "Closed" = 'closed';

Question: Opened prior to 1877 only 2.44km from Wellington, when did this station close?
SQL: SELECT "Closed" FROM "2-1799173-3" WHERE "Opened" < 1877.0 AND "Distance from Wellington" = '2.44km';

Question: What is the height above sea level for the station opened 175.67km from Wellington prior to 1887?
SQL: SELECT "Height above sea level (m)" FROM "2-1799173-3" WHERE "Opened" < 1887.0 AND "Distance from Wellington" = '175.67km';

Question: For the station opened after 1876 at 604.53km from Wellington, what is the height above sea level?
SQL: SELECT "Height above sea level (m)" FROM "2-1799173-3" WHERE "Opened" > 1876.0 AND "Distance from Wellington" = '604.53km';