A photo of Yucca flowers.

Yucca bloom in early March along the Old Ore Road north of Rio Grande Village. In the distance, Ernst Arroyo (an intermittent stream) carved a canyon through a hogback ridge of Cretaceous sedimentary formations along the eastern flank of the Sierra Del Carmen in eastern Big Bend National Park. 

Note: sources of geologic interpretation for this website are based on roadlogs by Maxwell (1986) and Scheubel and Mruk (1994), a park geologic map by Maxwell and Lonsdale (1966), and other sources listed in selected references for this website. Stone ([2010]) and Lady Bird Johnson Wildflower Center, [2010] are sources for Chihuahuan desert plant information.