gill pinnacle (or gill's pinnacle) is an inselberg in the far east of western australia, on the ngaanyatjarra lands. it is part of the petermann ranges. it consists of a dome-shaped hill, surrounded by dense shrub; its top is bare rock. the hill has been useful as a landmark, because it marks the location of one of the area's most reliable freshwater rockholes, gordon's springs. this is a few hundred meters to the north of the rock. the area is called (also spelled ' or ') in pitjantjatjara and ngaanyatjarra.