In Ax-les-Thermes, Henri Rivière presents a lush landscape filled with vibrant greens and blues. The painting features rolling hills and a serene sky, creating a peaceful atmosphere. The colors are rich and varied, suggesting a lively natural environment.

The composition draws the viewer's eye across the landscape, inviting exploration. The painting is executed in oil on canvas, showcasing Rivière's skillful brushwork and use of color. The texture of the paint adds depth to the scene, enhancing the feeling of movement in the natural elements. The dimensions are approximately 60 x 80 cm, making it a medium-sized work that can be appreciated up close.

The vibrant palette reflects the Post-Impressionist style, emphasizing the beauty of nature. Henri Rivière was known for his landscapes and depictions of nature, often capturing the essence of rural life. 'Ax-les-Thermes' is a notable example of his work from the 1890s, a period when he was exploring the interplay of light and color. Interestingly, Rivière was also an accomplished printmaker, which influenced his painting techniques.

This work exemplifies his ability to blend realism with a touch of impressionistic flair.