Family Skijo オース was a ski area located to the east of central Fukui City in what used to be Miyama Town. The full name of the ski area in Japanese was ファミリースキー場オース but it is unclear how the last part of the name should be written in English characters. Perhaps one reason why the name is a mystery is… because the ski area never actually opened.
The facility was built in 1994 and was officially abandoned in 2007 but during that period it did not officially open… not even for one day!
More details here: