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. TRALSPL2 - Do you possess at least four years of professional experience equivalent to a Transportation Engineer, including two years equivalent to a Transportation Engineer P11, or one year equivalent to a Transportation Engineer 12 or a Transportation Engineer Licensed 12?.