The Sportsman's Lakeside Lodge, located just north of Hillsborough, was one of two Orange County KKK "klaverns" (i.e. local club or unit) of the United Klans of America, Inc. (UKA). Another Orange County klavern was located in or near Mebane.
The Sportsman's Lakeside Lodge, August 1965 (photo via the Chapel Hill Weekly)
There is a structure (built circa 1963) currently on the property that is similar in description, but may not be the same one as shown in the above photograph. The current owners by the way, are not who owned the property in the 1960s.
For more information, see: freepages.history.rootsweb.ancestry.com/~orangecountync/peeps/klan/klan1960s/klan2.html