“A Lonely Business”: Isabelle Johnson’s Montana

through Jan. 3, the new Montana Masters series highlights the work of this pioneering modernist, who captured the essence of Montana, especially during winter; the series also highlights the legacy of Bozeman artist and educator Willem Volkersz in “Persistent Memories: Sculptural Works,” also on display through Jan. 3. Through Dec. 3, “Modern Masters” features paintings by Aristide Maillol, Paul Signac and Claude Monet. “Boundless Visions: Selections from the Permanent Collection” is ongoing.