This beautiful painting, San Jacinto Mountains, was created in 1960 by Eva Slater. It is currently on view at the Palm Springs Museum of Art. You can also see her study for the painting on view as part of the exhibition A Shadow Set Free.

California Desert Art has more information on the artist as well as an image of the study.

From the museum about the work-

Eva Slater’s painting, San Jacinto Mountains, conveys the majesty and mystery of the mountain range that dominates the western boundary of the Coachella Valley. Its clean lines, broad areas of rich color, flat simplified forms, and well-defined edges are characteristic of the California Hard-Edge style of painting that Slater helped to establish. However, the delicate triangles that flow throughout the composition are a unique contribution to this movement. Slater described these forms as “cells” that functioned much like the cells in our body. Each triangular “cell” is stretched and molded to conform to the contours of the layered mountain peaks, and the subtle color changes create a sense of atmosphere and depth.