The Pecos River is a popular landmark in the southwestern United States, but sometimes it's helpful to have other words on hand when referring to this historic waterway. Some possible synonyms include the Pecos, Rio Pecos, and Pecos Stream. Other options might include variations like the Pecos Springs or Pecos Watershed or more poetic expressions like the River of the Sacred Stones or the Flowing Canyon. Whatever you choose, make sure to be clear and specific when referring to this important natural feature, as it plays a crucial role in the environmental, cultural, and economic life of the surrounding region.