State Plane Coordinate System State Plane Coordinate System The State Plane Coordinate System (SPS or SPCS) is a set of 124 geographic zones or coordinate systems designed for specific regions of the United States. Each state contains one or more state plane zones, the boundaries of which usually follow county lines. There are 110 zones in the contiguous US, with 10 more in Alaska, 5 in Hawaii, and one for Puerto Rico and US Virgin Islands. The system is widely used for geographic data by state and local governments. Its popularity is due to at least two factors. First, it uses a simple Cartesian
Snakes on a Plane snakes attack Rick, and while fending them off he accidentally releases the oxygen masks throughout the plane, causing several snakes to drop into the cabin with them. Numerous passengers, including Agent Sanders, are killed when the snakes invade the cabin. The surviving passengers, who have made their way to the front of the plane, put up blockades of luggage in a desperate attempt to stop the snakes. Rick is attacked and the plane starts to dip downwards, causing a food trolley to crash through the luggage blockade. The passengers flee to the upstairs first class cabin before blocking the stairwell