14 CFR 93.305 – Flight-free zones and flight corridors
Except in an emergency or if otherwise necessary for safety of flight, or unless otherwise authorized by the responsible Flight Standards Office for a purpose listed in § 93.309, no person may operate an aircraft in the Special Flight Rules Area within the following flight-free zones:
(a) Desert View Flight-free Zone. That airspace extending from the surface up to but not including 14,500 feet MSL within an area bounded by a line beginning at Lat. 35°59?58? N., Long. 111°52?47? W.; thence east to Lat. 36°00?00? N., Long. 111°51?04? W.; thence north to 36°00?24? N., Long. 111°51?04? W.; thence east to 36°00?24? N., Long. 111°45?44? W.; thence north along the GCNP boundary to Lat. 36°14?05? N., Long. 111°48?34? W.; thence southwest to Lat. 36°12?06? N., Long. 111°51?14? W.; to the point of origin; but not including the airspace at and above 10,500 feet MSL within 1 nautical mile of the western boundary of the zone. The corridor to the west between the Desert View and Bright Angel Flight-free Zones, is designated the “Zuni Point Corridor.” This corridor is 2 nautical miles wide for commercial air tour flights and 4 nautical miles wide for transient and general aviation operations.
(b) Bright Angel Flight-free Zone. That airspace extending from the surface up to but not including 14,500 feet MSL within an area bounded by a line beginning at Lat. 35°58?39? N., Long. 111°55?43? W.; north to Lat. 36°12?41? N., Long. 111°53?54? W.; northwest to Lat. 36°18?18? N., Long. 111°58?15? W.; thence west along the GCNP boundary to Lat. 36°20?11? N., Long. 112°06?25? W.; south-southwest to Lat. 36°09?31? N., Long. 112°11?15? W.; to Lat. 36°04?16? N., Long. 112°17?20? W.; thence southeast along the GCNP boundary to Lat. 36°01?54? N., Long. 112°11?24? W.; thence clockwise via the 4.3-nautical mile radius of the Grand Canyon National Park Airport reference point (Lat. 35°57?08? N., Long. 112°08?49? W.) to Lat. 35°59?37? N., Long. 112°04?29? W.; thence east along the GCNP boundary to the point of origin; but not including the airspace at and above 10,500 feet MSL within 1 nautical mile of the eastern boundary or the airspace at and above 10,500 feet MSL within 2 nautical miles of the northwestern boundary. The corridor to the east, between this flight-free zone and the Desert View Flight-free Zone, is designated the “Zuni Point Corridor.” The corridor to the west, between the Bright Angel and Toroweap/Shinumo Flight-free Zones, is designated the “Dragon Corridor.” This corridor is 2 nautical miles wide for commercial air tour flights and 4 nautical miles wide for transient and general aviation operations. The Bright Angel Flight-free Zone does not include the following airspace designated as the Bright Angel Corridor: That airspace one-half nautical mile on either side of a line extending from Lat. 36°14?57? N., Long. 112°08?45? W. and Lat. 36°15?01? N., Long. 111°55?39? W.
(c) Toroweap/Shinumo Flight-free Zone. That airspace extending from the surface up to but not including 14,500 feet MSL within an area bounded by a line beginning at Lat. 36°05?44? N., Long. 112°19?27? W.; north-northeast to Lat. 36°10?49? N., Long. 112°13?19? W.; to Lat. 36°21?02? N., Long. 112°08?47? W.; thence west and south along the GCNP boundary to Lat 36°10?58? N., Long. 113°08?35? W.; south to Lat. 36°10?12? N., Long. 113°08?34? W.; thence in an easterly direction along the park boundary to the point of origin; but not including the following airspace designated as the “Tuckup Corridor”: at or above 10,500 feet MSL within 2 nautical miles either side of a line extending between Lat. 36°24?42? N., Long. 112°48?47? W. and Lat. 36°14?17? N., Long. 112°48?31? W. The airspace designated as the “Fossil Canyon Corridor” is also excluded from the Toroweap/Shinumo Flight-free Zone at or above 10,500 feet MSL within 2 nautical miles either side of a line extending between Lat. 36°16?26? N., Long. 112°34?35? W. and Lat. 36°22?51? N., Long. 112°18?18? W. The Fossil Canyon Corridor is to be used for transient and general aviation operations only.
(d) Sanup Flight-free Zone. That airspace extending from the surface up to but not including 8,000 feet MSL within an area bounded by a line beginning at Lat. 35°59?32? N., Long. 113°20?28? W.; west to Lat. 36°00?55? N., Long. 113°42?09? W.; southeast to Lat. 35°59?57? N., Long. 113°41?09? W.; to Lat. 35°59?09? N., Long. 113°40?53? W.; to Lat. 35°58?45? N., Long. 113°40?15? W.; to Lat. 35°57?52? N., Long. 113°39?34? W.; to Lat. 35°56?44? N., Long. 113°39?07? W.; to Lat. 35°56?04? N., Long. 113°39?20? W.; to Lat. 35°55?02? N., Long. 113°40?43? W.; to Lat. 35°54?47? N., Long. 113°40?51? W.; southeast to Lat. 35°50?16? N., Long. 113°37?13? W.; thence along the park boundary to the point of origin.