Definition: A seep is a spring in which water has filtered through permeable earth to the surface. [ https://en.wikipedia.org/wiki/Spring_(hydrology) ]
Definition: A piece of rock with a grain size above 300 millimetres in diameter. Smaller boulders are, at times, referred to as rocks or stones. [ https://en.wikipedia.org/wiki/Boulder]
Definition: A point where groundwater or steam flows out of the ground, and is thus where the aquifer surface meets the ground surface or where there is a fissure.