Today-Sunday: After 17 years of steady growth, the potters of the St. Croix Valley are making a few changes in their annual event. They've added a day and a new host to what's long been one of the region's most attractive ways to sample a huge variety of ceramic styles (traditional to modern), materials (earthenware, porcelain) and forms (platters, teapots, even a few sculptures). Seven resident potters have invited friends from 13 states -- Maine to Montana -- to participate. Their wares will fill tents and tables in former farmyards and rustic retreats that meander north along the St. Croix River from Osceola, Wis., through Taylors Falls, Minn., to Sunrise and inland to Stark. Guillermo Cuellar, who was born in Venezuela, has invited six classic Midwestern talents to show at his new studio, about 10 miles north of Marine on St. Croix. Suze Lindsay of Bakersville, N.C., who made the fanciful animalian teapot pictured at left, will be showing with seven other artists at the studio of Robert Briscoe near Stark. Watch for the yellow signs with the big orange jugs. (Noon-7 p.m. today; 10 a.m.-6 p.m. Sat. & Sun., free. 651-674-4656 or download maps at minnesotapotters.com.)