It's is a town and county in Subcarpathian Voivodeship, Poland with 50,000 inhabitants. Close to Dukla and Rzeszow.
Notably Krosno is the site of the first oil well (or "mine") in the world.
Krosno is a medieval fortified town, a former Royal Free Town, a centre of cloth, linen, canvas, baize and Hungarian wine trade. Until recently it was a provincial capital. Today it is a medium-sized town with a population of fifty thousand, ranking sixth among Polish towns with the best living conditions. This evident success appears understandable when one looks at the history of the town.