Although he roughed it in the Yukon for a few years, Service lived most of the end of his life in France (source). Not a bad move.
Although his characters "moiled for gold," Service didn’t have to do anything quite that strenuous. He worked at a bank when he lived in the Yukon (source).
Sled dogs like the Siberian Husky can survive at temperatures colder than -60 degrees Fahrenheit! (source).
Over 100,000 people joined in the stampede to the Klondike gold fields. Of these, historians think only about 300 made serious money (source).