St. Croix pottery is dated from the Middle to Late Woodland period, between 500 and 800 A.D. This kind of pottery has a large geographic distribution, ranging from the Gull Lake Dam Site to central Minnesota.
The color of this pottery is usually dull gray. The vessels are generally rounded, with a small neck and high vertical rim, which \was usually smoothed before application of decoration.
There are two basic types of design: the dentate stamped variety, and the comb stamped variety. With the dentate type, the lip is usually think and flat; it often looks crimped because the vessel has been stamped both on the outside and inside. With the comb stamped variety, the lip is usually flattened but occasionally rounded.
Anfinson, Scott F. A Handbook of MN Prehistoric Ceramics Pg 169-170 Minnesota Archaeology Society, Fort Snelling, Minnesota. 1979.