During World War II, Alness was home to RAF Alness, a large training and operational base for Catalina amphibians and Sunderland seaplanes, which extended from Invergordon to Alness point - now an industrial estate. A memorial to the men who were killed on operational missions was placed at this industrial estate in 2001. A propeller from a Catalina was found and restored by RAF apprentices and now resides in the town of Alness. The tennis courts on the industrial estate are the only remaining parts of the estate which date from World War II.