Anamosa Limestone or Anamosa Member is a dolomitic limestone quarried out of Stone City, Iowa, which is located along the Wapsipinicon River about two miles west of Anamosa, Iowa. It is distinguished by its uniform texture, color, and banding, its durability and most of all by its distinct planar and undulating varve–like laminations.[1] This distinctive stone forms part of the Gower Formation, the youngest Silurian strata in Iowa. The Gower is overlain unconformably by a mid–Devonian formation.[1] The color classification is Buff, which is described as a warm shade of light to moderate gold.