Originally Posted by
cheltzel
Is the gate in the right most pair of columns of the LHR Movements? It seems like a terminal/gate combination and a runway number as a pair.
Yes that's right. Column G is the departure gate - First Number is the Terminal, 2nd and 3rd number denote the gate number i.e. 561 is Gate 61, Terminal 5 (or we'd call it C61).
The last column is the departure runway.