E. J. Hulbert, a friend of Agassiz's brother-in-law, Quincy Adams Shaw, had discovered a rich copper lode known as the Calumet conglomerate on the Keweenaw Peninsula Lake Superior in Michigan.

Delimitation of international boundaries in the vicinity of Lake Chad, the lack of which led to border incidents in the past, is complete and awaits ratification by Cameroon, Chad, Niger, and Nigeria ; dispute with Nigeria over land and maritime boundaries around the Bakasi Peninsula and Lake Chad is currently before the ICJ, as is a dispute with Equatorial Guinea over the exclusive maritime economic zone.

Delimitation of international boundaries in the vicinity of Lake Chad, the lack of which led to border incidents in the past, has been completed and awaits ratification by Cameroon, Chad, Niger, and Nigeria ; dispute with Cameroon over land and maritime boundaries around the Bakasi Peninsula is currently before the ICJ ; maritime boundary dispute with Equatorial Guinea because of disputed jurisdiction over oil-rich areas in the Gulf of Guinea.

* Bruce Peninsula, Ontario, extending into Lake Huron

* Cynthia Peninsula, Ontario ( in Lake Temagami )

* Joan Peninsula, Ontario ( in Lake Temagami )

* Leith Peninsula, Northwest Territories ( in Great Bear Lake )

* McLean Peninsula, Ontario ( in Lake Temagami )

* North Peninsula, Ontario ( in Lake Nipigon )

* Prince Edward Peninsula, Ontario ( in Lake Ontario )

* Sibley Peninsula, Ontario ( in Lake Superior )

* Promentory Peninsula, on the north eastern shore of the Great Salt Lake

* Stansbury Peninsula, becomes an island when waters are high, on the south shore of the Great Salt Lake

* Door Peninsula, Wisconsin, in Lake Michigan

Passing the Straits of Mackinac, La Salle and the Griffon made landfall on Washington Island, off the tip of the Door Peninsula on the Wisconsin side of Lake Michigan.

File: Lake Huron from Upper Peninsula. JPG | View of rocky shore of Lake Huron from east of Port Dolomite, Michigan in the upper peninsula.

* Lake and Peninsula Borough, Alaska

Houghton is sometimes confused with, or thought to be close to, Houghton Lake ; the latter is actually located in the state's Lower Peninsula.

Houghton gained in importance as a port with the opening of the Keweenaw Waterway in 1873 ; the waterway being the cumulative dredging and extension of the Portage Lake, Portage Shipping Canal and Lily Pond so as to isolate the northern part of the Keweenaw Peninsula into Copper Island.

Copper Island is a local name given to the northern part of the Keweenaw Peninsula ( projecting northeastward into Lake Superior at the western end of the Upper Peninsula of Michigan, United States of America ), separated from the rest of the Keweenaw Peninsula by Portage Lake and the Keweenaw Waterway.

* Lake and Peninsula Borough, Alaska to the east

* Lake and Peninsula Borough, Alaska-south

It is also among the smallest, consisting of little more than the rectangle of land around Naknek on the coast and King Salmon ( which, uniquely, serves as the borough seat for the neighboring Lake and Peninsula Borough ) inland.

* Lake and Peninsula Borough, Alaska ( east, north and south )

* Lake and Peninsula Borough, Alaska-east

* Lake and Peninsula Borough, Alaska-west

* Lake and Peninsula Borough, Alaska-northwest

Lake and Peninsula Borough is a borough located in the state of Alaska, United States.

With an average of 0. 0296 inhabitants / km² ( 0. 0767 / sq mi ), the Lake and Peninsula Borough is the second least densely populated organized county-equivalent in the United States ; only the Yukon-Koyukuk Census Area, which is unorganized, has a lower density.

* List of airports in the Lake and Peninsula Borough

de: Lake and Peninsula Borough

es: Borough de Lake and Peninsula

fr: Borough de Lake and Peninsula

it: Borough di Lake and Peninsula

nl: Lake and Peninsula Borough

no: Lake and Peninsula Borough

nds: Lake and Peninsula Borough

sv: Lake and Peninsula Borough

tr: Lake and Peninsula Borough

The borough is also the third-least densely populated county-level entity in the United States ( after the Yukon-Koyukuk Census Area and the Lake and Peninsula Borough ).

King Salmon is the borough seat of neighboring Lake and Peninsula Borough, but does not serve that purpose in its own borough, whose borough seat is in Naknek.

Mosquito Lake is a census-designated place ( CDP ) in Haines Borough, Alaska, United States.

Cooper Landing, also commonly referred to as The Landing, is a census-designated place ( CDP ) in Kenai Peninsula Borough, Alaska, United States, about south of Anchorage, at the confluence of Kenai Lake and Kenai River.

Chignik is a city in Lake and Peninsula Borough, Alaska, United States.