In Plains Viscacha, the viewer is greeted by a realistic portrayal of a Viscacha, a small rodent native to South America. The animal is depicted in a natural setting, surrounded by grasses and earthy tones. The colors are warm, with browns and greens dominating the palette, reflecting the animal's habitat.

The attention to detail captures the texture of the Viscacha's fur and the surrounding environment. The painting is executed in oil on canvas, a medium that allows for rich color and fine detail. The artist employs a realistic style, focusing on the accurate representation of the Viscacha and its surroundings. The composition is balanced, with the animal positioned prominently in the foreground.

The brushwork is meticulous, enhancing the lifelike quality of the scene. Charles Hamilton Smith was known for his detailed studies of animals and natural history. Plains Viscacha reflects his interest in zoology and his ability to capture the essence of wildlife. An interesting fact about this work is that it was likely created during a time when natural history illustrations were gaining popularity, contributing to the scientific understanding of species.