Yellowstone National Park 100th Anniversary Logo
Yellowstone's 150th anniversary logo starts with a hexagonal shape in an orange and brown color that's reminiscent of many colors throughout the park. Inside, layers of monochrome silhouette's depict the park's famous geysers and wildlife. In the bottom half, the name of the park sits just above the years of operation with a callout of the anniversary arching across the upper part of the design.