The Plains of Gol was a desert region on Vulcan, laying to the east of the city of ShiKahr. (TOS novel: Sarek; TLE novel: The Sundered) The Plains of Gol was where the Masters of the Kolinahr lived and gave instruction. (TOS novels: Sarek, Vulcan's Forge) A young Spock was noted for travelling this region during his childhood. (TOS novel: Avenger) A young Tuvok went into the Plains of Gol when he embarked on the Rite of Tal'oth. (TLE novel: The Sundered) Presumably, the Plains were located in the province of Gol with the city itself bordering the region.