Antique Real Photo Postcard, circa pre-1920. Two children seated on woodpile alongside the St. Joseph River in Michigan. Divided back, Kruxo stampbox, unused. Condition: This is an original photo postcard, not a copy or reproduction. It is in very good condition. Comments: The St. Joseph River (known locally as the St. Joe) is a tributary of Lake Michigan with a length of 206 miles (332 km).[4] The river flows in a generally westerly direction through southern Michigan and northern Indiana, United States, to its terminus on the southeast shore of the lake. It drains a primarily rural farming area in the watershed of Lake Michigan. It was enormously important to Native Americans and greatly aided in the colonial exploration, settlement and administration of New France and the nascent United States as a canoe route between Lake Michigan and the watershed of the Mississippi River.