The Hudson River School was a group of artists in the American Northeast who drew inspiration from the great outdoors to create romantic images of the American wilderness. The leader of the movement was Thomas Cole, who traveled around the Hudson River Valley, seeking out extreme and glorious vistas to recreate with his brush. His style caught on and this type of art was especially popular for two generations of painters, from 1835 through 1870. The movement centered on three main themes: discover, exploration, and settlement. It fostered the technique of using light effects to highlight mist and sunset, known as “Luminism“. Art from the Hudson River School movement was ultimately influential in the efforts towards national parks and early land and wildlife conservation.