HMS Forest Moor was a Royal Navy land base located in Nidderdale in the borough of Harrogate, North Yorkshire, England.

[2] In 1960 it became the Royal Navy's major high frequency (HF) receiver station,[2] its primary function was to route HF signals from locations abroad to military bases and command centres in the UK.

[3] The base was manned by a small group of Royal Naval radio operators and electricians (approximately six to a shift).

[citation needed] HMS Forest Moor was also the setting of a short-lived YTV comedy Thundercloud starring James Cosmo on a stone frigate which the Royal Navy confuse with an actual ship.

[7] In 2010, the site was disposed of by Defence Estates to North Yorkshire County Council for £4.7 million.