Definition of launchpad. : a nonflammable platform from which a rocket, launch vehicle, or guided missile can be launched.
Terrain is defined as the specific physical features of an area of land. An example of terrain is a rocky and jagged coastline. ground or a tract of ground, esp. with regard to its natural or topographical features or fitness for some use.
ridge. n. 1. (Physical Geography) a long narrow raised land formation with sloping sides esp one formed by the meeting of two faces of a mountain or of a mountain buttress or spur. 2. any long narrow raised strip or elevation, as on a fabric or in ploughed land.