New York photographer Alfred Stieglitz (1864–1946) befriended and championed several of the most visionary modern painters to emerge in early twentieth-century America. Five modern artists who were closely identified with Stieglitz's circle are represented in the ACMAA collection. They are Charles Demuth (1883–1935), Arthur G. Dove (1880–1946), Marsden Hartley (1877–1943), John Marin (1870–1953), and Georgia O'Keeffe (1887–1986). The collection houses early works by Demuth, Dove, Hartley, and O’Keeffe, produced between 1908 and 1918, and a focused group of later paintings by Dove, Hartley, Marin, and O’Keeffe that capture their response to the light and color of the New Mexican landscape near Taos. Charles Demuth’s "Chimney and Water Tower" (1931), painted in the artist’s hometown of Lancaster, Pennsylvania, depicts a local linoleum factory as a grid of austere, monumental forms and passages of steel gray, blue, and deep red. "Chimney and Water Tower" entered the ACMAA collection in 1995.