Abstract: A marker for ground areas has a hollow cylindrical rigid body with an open end and a closed end, the open end constituting the bottom and the closed end constituting the top when the marker is embedded in the ground. Such rigid body is forced under pressure into the ground by pressing it into the ground until the top wall is substantially level with the ground surface. The top wall is treated to present a prominent indicating surface, and, in the instance of the marker being used for golf courses, the top wall is formed from a resilient, plastic or elastomeric material that would be comparable to the natural ground surface insofar as ball reaction thereto in striking the same is concerned.

Abstract: A device for indicating to a golfer the location of the cup in the green of a hole on a golf course is composed of a plate that is either itself bodily shaped and formed to correspond on a relative basis to the shape and size of the green or is of a substantially rectangular shape and has pictorially depicted or otherwise formed on a viewable surface a visual representation on a relative basis of the shape and size of the green. Either plate is provided with a device for mounting it vertically on the tee at ground level and at an inclined angle to the perpendicular so that a golfer can easily glance at it while he is in the teeing area. The plate is provided with a plurality of apertures that represent various potential placements of the cup in the green and an indicating member is disposed on the viewable surface of the plate and removably fastened in one of the apertures to indicate where the cup is on the green.