Step 1: Understanding the Concept:
This question tests factual knowledge about major global transportation infrastructure, specifically famous pipelines.
Step 2: Detailed Explanation:
The "Big Inch" and its companion, the "Little Big Inch," were petroleum pipelines constructed during World War II in the U.S.A. They were a massive engineering project designed to transport crude oil and refined products from the oil fields of Texas to the refineries and industrial centers of the northeastern United States, securing the fuel supply for the war effort against the threat of German U-boats attacking coastal tankers.
Step 3: Final Answer:
The Big Inch pipeline is located in the U.S.A.