Florida is the largest peninsula.
Just Florida.
The Appalachian mountains are in the eastern part of the United States. In North America they extend from the Gaspè Peninsula in Quebec to Georgia.
No, it is a part of Mexico. The peninsula makes up two states in Mexico: Baja California and Baja California Sur
The largest peninsula in the US is Florida. There are other states that are considered a peninsula that include Alaska, New Jersey and Michigan.
The Aleutian Islands.
Aleutian Islands
It is part of the country of Mexico, composed by the states of Campeche, Yucatan and Quintana Roo.
The Iberian Peninsula mainly contains the countries of Spain and Portugal. The US has large populations of both Spanish and Portuguese. The Iberian Peninsula is where Hispanics originate from, and the US has a large Hispanic population. Spain has also owned part of what is now the US (mainly the Western US, Florida, Puerto Rico, and Guam). The US and Iberian Peninsula also used to be psychically connected to each other some 500-200 mya when they were both a part of Laurasia.
The Gulf of California separates the Baja California Peninsula from most of the rest of Mexico. Note that the peninsula is NOT part of the US state of California. It is part of Mexico.
Florida, Michigan and Alaska. Yucatan and Baja are also states.
Peninsula is a noun.