Cottonwood (Oro Ranch) is a private water structure located in Yavapai, Arizona, with a primary purpose of serving as a source for fire protection, stock, or a small fish pond. The dam is of Earth type, with a height of 21.8 feet and a storage capacity of 131.9 acre-feet. Positioned along the Hope Canyon stream, the dam's spillway is uncontrolled, measuring 67 feet in width.

Despite being classified as having a low hazard potential, Cottonwood (Oro Ranch) is subject to state regulation, inspection, and enforcement by the Arizona Department of Water Resources. The last inspection of the dam was conducted in October 2007, and it has an inspection frequency of 5 years. The risk assessment for the structure is moderate, indicating a level 3 threat, though specific risk management measures and detailed assessments are not currently available.

Water resource and climate enthusiasts interested in Cottonwood (Oro Ranch) can appreciate its role in providing essential water services for fire protection and stock purposes in the region. With its modest storage capacity and low hazard potential, the dam serves as a valuable asset in the area's water management infrastructure. Monitoring and management of the structure by state regulatory agencies ensure its continued safety and functionality, contributing to the sustainable use of water resources in Yavapai, Arizona.