A broad sweep of mountainous terrain fills the composition, with the Sierra de Guadarrama stretching across the entire width of the canvas. The snow-capped peaks dominate the middle ground, rendered in quick, expressive strokes of blue, white, and grey, suggesting the cold clarity of high altitude. Below the mountains, a dark band of earth and rock forms a stark horizontal barrier, separating the rugged heights from the greenish, shadowed foothills at the bottom edge.

The foreground is loosely painted, with dabs and swathes of deep green and ochre, evoking dense vegetation or forested slopes without precise detail. Above the mountains, the sky occupies more than half the canvas, its pale, muted tones shifting from warm beige to cooler greys, with a single area of bright, cloud-lit white breaking through near the upper left. The light in the scene is diffuse, with no clear source, but the snow on the peaks catches a silvery glow, while the lower slopes remain in shadow.

Brushwork throughout is energetic and visible, especially in the depiction of the mountains, where strokes overlap and blend to suggest the rugged, irregular forms of the range. The composition is horizontal and panoramic, emphasizing the expanse and grandeur of the landscape, with no human presence or built structures to interrupt the natural scene. A patch of yellow-green appears near the lower left corner, standing out against the darker greens of the foreground.

The upper right corner of the sky is subtly tinged with a faint brownish hue, deepening the sense of overcast atmosphere. Along the lower edge, the brushstrokes become broader and more horizontal, suggesting a flatter terrain or plain. The snow on the leftmost mountain is rendered with lighter, almost translucent washes, contrasting with the heavier paint on the central peaks.

Thin vertical streaks of paint are visible in the right half of the mountain range, indicating the downward movement of the brush and adding texture to the rocky slopes.