The Nature Conservancy and the Gilcrease Museum in Tulsa are having a number of events together around the Bierstadt painting exhibition which goes from November to February. Here is a bit of the blurb: "The Nature Conservancy is excited to team up with the Gilcrease Museum for one of the most highly anticipated exhibitions on the 2018 calendar—Albert Bierstadt: Witness to a Changing West. While Bierstadt is most widely known for his beautiful landscape paintings of the American West, this exhibition examines him as a painter of history and shows how his work approached the conservation issues of his day."
Info at:
Experience Bierstadt at Gilcrease Museum