Harper and Sons, also known as the Ed W Harper Reservoir, is a private water resource located in Routt County, Colorado. This reservoir, completed in 1947, serves multiple purposes including irrigation, fire protection, stock, small fish ponds, and fish and wildlife habitats. With a storage capacity of 330 acre-feet, this earth dam structure stands at 29 feet tall and spans 536 feet in length along Egeria Creek.

Managed and regulated by the Colorado Department of Water Resources, Harper and Sons has a low hazard potential and is considered to be in fair condition as of the last inspection in June 2020. The reservoir's spillway, which is uncontrolled, has a width of 16 feet allowing for a maximum discharge of 809 cubic feet per second. Despite its moderate risk assessment, the reservoir's emergency action plan status and risk management measures are currently unspecified.

For water resource and climate enthusiasts, Harper and Sons offers a fascinating glimpse into private water management practices in Colorado. With its historical significance, multiple uses, and regulatory oversight, this reservoir serves as a vital resource for irrigation and conservation efforts in the region. Its location in the picturesque city of Toponas adds to its charm, making it a notable feature in the local landscape for both visitors and residents alike.