From Google Maps — search the address, then right-click the exact
point on the map. The numbers at the top of the menu
(e.g. 53.4808, -2.2426) are the latitude and longitude —
click them to copy, then paste them here.
One stop per line, first line is your start point (depot):
Depot, 53.4808, -2.2426 Salford, 53.4875, -2.2901 Stockport, 53.4106, -2.1575