Alexander Canyon - Halliday is a private water resource located in Summit, Utah, specifically in the city of Wanship. The dam, completed in 1977, serves primarily for recreation purposes along Alexander Creek. With a structural height of 30 feet and a hydraulic height of 27 feet, the dam has a storage capacity of 50 acre-feet and a drainage area of 1 square mile.

Managed and regulated by the Utah Division of Water Rights, Alexander Canyon - Halliday is inspected every 5 years with a low hazard potential rating. The dam has not been rated for its condition assessment, and the last inspection was conducted in July 2016. Despite lacking an Emergency Action Plan (EAP) and updated inundation maps, the dam's risk assessment and management measures remain unspecified. These factors, combined with the recreational setting, make Alexander Canyon - Halliday an intriguing site for water resource and climate enthusiasts to explore and study.