Polish Painting Masterpieces
Rafal Malczewski
"The Rocky Mountains with a Green River", 1943, watercolour on paper, 38 x 54 cm, Tatra Museum, Zakopane

Source: Czapska-Michalik, Magdalena, „Rafal Malczewski [1892-1965]”, „LUDZIE CZASY DZIELA” series, Edipresse Polska S.A., Warszawa 2007, ISBN 978-83-7477-211-2