Humbug Marsh

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Humbug Marsh
LocationGibraltar and Trenton, Wayne County, Michigan, United States
Coordinates42°06′57″N 83°11′18″W / 42.11583°N 83.18833°W / 42.11583; -83.18833Coordinates: 42°06′57″N 83°11′18″W / 42.11583°N 83.18833°W / 42.11583; -83.18833
Designated20 January 2010
Reference no.1928[1]

Humbug Marsh, a 1.88 square kilometres (0.73 sq mi) wetland in southeastern Wayne County, Michigan, is a constituent element of the Detroit River International Wildlife Refuge. It is listed as a RAMSAR wetland of international importance.[2]

Although Humbug Marsh is located within heavily populated Metro Detroit, it is acclaimed as a high-quality remnant of the wetlands that once lined both sides of the international Detroit River. This slow-flowing river was a hotspot of biological diversity, particularly as a location for fish spawning. The remnant marsh is classified as a place of "importance to threatened, endangered, and vulnerable species and ecological communities."[2]

Humbug Marsh is located on the Downriver shoreline of the Detroit River, straddling the boundary line between Gibraltar and Trenton in southeastern Wayne County, Michigan. A small offshore island (Humbug Island) is included within the official boundaries of the Marsh.[2]

The Humbug Marsh parking lot is located at 5437 West Jefferson Avenue, Trenton, Michigan.[2]


  1. ^ "Humbug Marsh". Ramsar Sites Information Service. Retrieved 25 April 2018.
  2. ^ a b c d "Detroit River International Wildlife Refuge". United States Fish and Wildlife Service. Archived from the original on 2011-04-17. Retrieved 2011-03-24.