Complex sentence: The village of Kensico was surrounded by hills that came to a natural v-shape and there was a nearby quarry on Silver Lake in North Castle, making the town a logical site for the new dam.
Split into simpler sentences: The village of Kensico was surrounded by hills that came to a natural V-shape. There was also a nearby quarry on Silver Lake, in North Castle, making the town a logical site for the new dam.