Lassie, Toto, Old Yeller. None of those old hounds holds a biscuit to this tough puppy. Seaman, the Newfoundland who accompanied Lewis and Clark from St. Louis to the Pacific, survived grizzlies, bison, and even a feisty beaver during the two-year journey. His feats earned him a bronze memorial at the Sacajawea Center’s 71-acre park in Salmon, Idaho. Sculptors William Kranstover and Adrian Prazten cast the statue in such vivid detail that visiting dogs bark in surprise. (208) 756-1188, www.sacajaweacenter.org.