Which painting did Georgia O'Keeffe create in 1931 from a cow's skull found in New Mexico?

Georgia O'Keeffe created Cow's Skull: Red, White, and Blue in 1931. The painting presents a bleached cow skull against a stark field of red, white, and blue.

O'Keeffe collected bones and other objects found in the New Mexico landscape, then transformed them into carefully composed paintings. The skull became both a recognizable natural form and an abstract structure, with its long curves and openings emphasized by the surrounding color.

The title refers directly to the American flag colors, but the painting is not a literal flag image. It belongs to O'Keeffe's New Mexico works in which desert bones, crosses, hills, and architectural forms became recurring subjects. It is also separate from her later pelvis paintings, which use a different bone form to frame the sky.