What is Gibraltar Is it an isthmus?

Gibraltar is a British overseas territory located at the southern tip of the Iberian Peninsula. It is a rocky peninsula with a land area of just over 6 square kilometres (2.3 sq mi). Gibraltar is bordered by Spain to the north and east, and the Mediterranean Sea to the south and west.

The answer is no. Gibraltar is not an isthmus. An isthmus is a narrow strip of land that connects two larger land masses. Gibraltar is not connected to any other land mass by a narrow strip of land.