KYROCK
Bituminous sandstone, better known as rock asphalt, composed of silica sand that is saturated with oil. Chief deposits in Ky. were found in Edmonson Co. along the Nolin River. Primarily used in road construction, it could be applied without heating and mixing. Ky. Rock Asphalt Co. (KYROCK) was the world’s largest producer of natural rock asphalt from 1920 until it closed in 1957.
(Reverse) Henry “Harry” St. George Carmichael was the first president of KYROCK from 1921 until his death in 1949. The company town of Kyrock included hotels, church, hospital, theater, post office, commissary, railroad, electric & water systems, and school on this site. More than 2000 people depended on KYROCK for their livelihood during WWI and II and the Great Depression.