Of 56 counties in Big Sky Country, Musselshell County ranks 35th by size (1,871 square miles). Musselshell County is in Southeast Montana. Montana's Musselshell County includes roughly 5,000 acres of lakefront property for sale based on recent Land Network data. The combined market value of land for sale here was about $8 million. Browse all waterfront property for sale in Musselshell County on the Land Network to find the marina, lakefront and other recreational property that meets your needs, from waterside land perfect as a retirement investment to existing residential waterfront land and property for hunting, fishing and other outdoor-recreation pursuits! The most common type of land for sale by combined acreage in Musselshell County is residential property.