Tresgrandas is one of 28 parishes in Llanes, a municipality within the province and autonomous community of Asturias, in coastal northern Spain.
The parroquia is 3.04 km2 (1.17 sq mi) in size, with a population of 59 in 2011. [1]
43°22′46″N4°36′31″W / 43.37938°N 4.6086°W