- Camp Logan: Houston, Texas 1917-1919
- The Upper Canyons of the Rio Grande
- Campus Martius and Its Ancient Monuments: Self-Guided Walks to the Archeological Ruins of Rome
- Buffalo Bayou: An Echo of Houston’s Wilderness Beginnings
- Great Unknown of the Rio Grande: Terlingua Creek to La Linda, including Boquillas Canyon and Mariscal Canyon










