Great Lakes and Great Times: Michigan boasts four Great Lakes, 11,000 inland lakes, 36,000 miles of rivers and streams, 20 million acres of forests, 100 state and national parks and recreation areas, 1,300 miles of bike trails, 6,500 miles of snowmobile trails, the second-most ski areas in the nation, 650 public golf courses, 600 campgrounds, and an international dark-sky park-just for starters. MAINMCHA - Do you possess at least five years of experience assisting skilled trades workers in the mechanical or electrical trades, including one year equivalent to a Maintenance Mechanic E9 OR Three years of experience assisting skilled trades workers in the mechanical or electrical trades, including one year equivalent to a Maintenance Mechanic E9, and the completion of a recognized program in vocational training for the mechanical or electrical trades.