Earth Figures of California-Arizona Colorado River Basin TR (NRIS 64000064)

• Anza Borrego-Palo Verde Site, S-2 (Borrego Springs)
• Anza Borrego-Sin Nombre, S-4 (Borrego Springs)
• Anza Borrego-Spit Mountain Site, S-3 (Borrego Springs)
• Archeological Site No. D-4 (Needles)
• Archeological Site No. E-21 (Parker)
• Spoke Wheel Rock Alignment (Ocotillo)
• Stonehead (L-7) (Yuma)
• Winterhaven Anthropomorph and Bowknot, L-9 (Winterhaven)
• Winterhaven Anthropomorph (L-8) (Yuma)

National Park Service documentation: https://npgallery.nps.gov/AssetDetail/NRIS/64000064