Calamus Reservoir is a large artificial lake located in Nebraska, USA. It was created by the construction of the Calamus Dam on the Calamus River, primarily for flood control, irrigation, and recreation. The reservoir covers approximately 4,000 acres and is a popular destination for fishing, boating, and camping. The surrounding area features diverse wildlife and natural landscapes, making it an attractive spot for outdoor enthusiasts. The Nebraska Game and Parks Commission manages the reservoir, ensuring that it remains a sustainable environment for both visitors and local ecosystems. Activities such as hiking and birdwatching are also common in this scenic area.