Complex sentence: Lauricocha near Huanuco was one of the important mountain encampments where the art of working stone to arrow points and fine blades was sophisticated and cave paintings depicted animals, hunting scenes and dances.
Split into simpler sentences: Lauricocha near Huanuco was one of the important mountain encampments. The art of working stone to arrow points and fine blades was sophisticated, and the people made cave paintings of animals, hunting scenes and dances.