Quito, formally San Francisco de Quito, is the capital city of Ecuador, and at an elevation of 9,350 feet (2,800 meters above sea level), it is the highest official capital city in the world. Located in Ecuador, South America, Quito is situated in the Guayllabamba river basin, on the eastern slopes of Pichincha Volcano, an active stratovolcano in the Andes mountains.
The only difference is the location on the animal. On a cow for example, the top sirloin is a slightly higher cut on the beast than the bottom sirloin. The generic term sirloin is another sirloin cut that is just above the tenderloin.
Fat content/marbling: Lean, but very tender. Top sirloin has a really nice fat cap on the top, which makes up for the lack of fat within the muscle. How to cook it: To cook the top sirloin cap: Sear for 4 to 5 minutes on each side, until it gets good color.