Milwaukee heritage, its glass skywalk system, and the Milwaukee Riverwalk. Milwaukee lies along the shores and bluffs of Lake Michigan at the confluence of three rivers: the Menomonee, the Kinnickinnic, and the Milwaukee. Smaller rivers, such as the Root River and Lincoln Creek, also flow through the city. Milwaukee's terrain is sculpted by the glacier path and includes steep bluffs along Lake Michigan that begin about a mile (1.6 km) north of downtown. In addition, southwest of Milwaukee is the Kettle Moraine and lake country that provides an industrial landscape combined with inland lakes. According to the United States Census Bureau,
Milwaukee then, Milwaukee still fares worse when comparing specific crime types to the national average (e.g., homicide, rape, robbery); only aggravated assaults occur less frequently in Milwaukee than the national average. The Milwaukee Police Department's Gang Unit was reactivated in 2004 after Nannette Hegerty was sworn in as chief. In 2006, 4,000 charges were brought against suspects through Milwaukee's Gang Unit. In 2013 there were 105 murders in Milwaukee and 87 homicides the following year. In 2015, 146 people were killed in the city. In 2018, Milwaukee was ranked the eighth most dangerous city in the US. Milwaukee currently ranks as