CASDE | Ayr -- Adams County
- Established in 1878. Contains a brief history and photographs.
- http://www.casde.unl.edu/history/counties/adams/ayr/

Crystal Lake State Recreation Area
- 33-acre park adjacent to the Little Blue River, featuring a 30-acre lake. The area offers picnicking, swimming, a playground and a tennis court. Includes facility details and contact information.
- http://www.ngpc.state.ne.us/parks/guides/parksearch/showpark.asp?Area_No=56