Many of the streams in the province contain small bits of petrified wood, fish, freshwater crabs, and other animals. Namria and Dingding creek merge as the two major tributaries to Lucong river in Concepcion. Most of Tarlac's waterways that originate from Mount Pinatubo pass through Capas, including the Bulsa Moriones River and Santa Lucia River that form Tarlac River.