Outcrops of granite tend to form tors and rounded massifs. These granites are visible in the tors atop Stony Hill. From its Perpendicular church of St Petrock fine views of the Dartmoor tors are seen. These landforms are inselbergs, flared slopes, domes, nubbins, tors, tafonis and gnammas. The Stiperstones is noted for its tors of quartzite. This is a list of Dartmoor tors and hills. For a more complete list see List of Dartmoor tors and hills. It was produced by Ivan Tors and Maurice Ziv. This process can be seen in Dartmoor where it results in the formation of tors. The screenplays were written by Gloria Tors, Gail Renard, Richard Carpenter and Richard Sparks. These hills and mountains are known as either "tors" or "koppies". It helped make films for Jacques Cousteau and Ivan Tors Studios. They fall in love and live together in Tors Cove. Producer Ivan Tors later estimated that 40 million people viewed the series weekly. His conquest of Marilyns, tors and peak bagging was renowned.