Ko Hŭi-dong produced a number of paintings depicting the Diamond Mountains (金剛山, Geumgangsan). This work portrays Jinju Pool (真珠潭), one of the celebrated Eight Pools of the Inner Geumgang region. A generous cascade is positioned at the center of the composition, above which a majestic gorge unfolds, skillfully harmonizing the profound and ethereal beauty of the valley with the serene atmosphere of the still pool below.

What distinguishes this work from Ko's other Diamond Mountain paintings is its use of jinchai (真彩) — vivid, fully saturated mineral pigments — combined with the perspectival conventions and technical approaches of Western painting, producing an effect that, at first glance, closely resembles oil on canvas. This is likely no coincidence: Ko Hŭi-dong began his career as a painter trained in Western techniques, and that formative experience evidently continued to shape his pictorial sensibility. Throughout the Japanese colonial period, representations of the Diamond Mountains were painted without interruption, serving as a vital vehicle for the transmission of traditional subject matter and painterly methods. Ko Hŭi-dong, through his sustained experimentation with Western modes applied to traditional materials, appears to have been engaged in a conscious effort to redefine and renew the tradition of Korean painting on his own terms.