Wheal Coates is a former tin mine situated on the north coast of Cornwall, UK, on the cliff tops between Porthtowan and St Agnes.

Wheal Coates[a] had produced a small amount of copper ore, more than a century earlier.

[11] The surviving buildings date from the 1870s when deep underground mining began at the site[3] and were stabilised and preserved in 1986.

[13] A calciner dating from 1910–1913 when the mine was reopened, roasted the tin to remove impurities such as arsenic.

[17] Wheal Coates is part of the Cornwall and West Devon Mining Landscape World Heritage Site.