Approach surfaces are surfaces abutting each end of the strips associated with the runways designated 16L-34R, 16R-34L and 07-25 and more particularly described as follows:
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(a) a surface abutting the end of the strip associated with runway approach 34R consisting of an inclined plane having a ratio of one (1) foot measured vertically to fifty (50) feet measured horizontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip, one thousand (1,000) feet measured vertically above the elevation at the end of the strip and fifty thousand (50,000) feet measured horizontally from the end of the strip, the outer ends of the imaginary horizontal line being eight thousand (8,000) feet from the projected centre line, excepting thereout all that portion of the said surface contained within the vertical projections of the boundaries of the Sarcee Indian Reserve No. 145,
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(b) a surface abutting the end of the strip associated with runway approach 34L consisting of an inclined plane having a ratio of one (1) foot measured vertically to forty (40) feet measured horizontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip, two hundred and seven and five tenths (207.5) feet measured vertically above the elevation at the end of the strip and eight thousand three hundred (8,300) feet measured horizontally from the end of the strip, the outer ends of the imaginary horizontal line being nine hundred and eighty (980) feet from the projected centre line,
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(c) a surface abutting the end of the strip associated with runway approach 16L consisting of an inclined plane having a ratio of one (1) foot measured vertically to fifty (50) feet measured horizontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip, one thousand (1,000) feet measured vertically above the elevation at the end of the strip and fifty thousand (50,000) feet measured horizontally from the end of the strip, the outer ends of the imaginary horizontal line being eight thousand (8,000) feet from the projected centre line,
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(d) a surface abutting the end of the strip associated with runway approach 16R consisting of an inclined plane having a ratio of one (1) foot measured vertically to forty (40) feet measured horizontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip, two hundred and seven and five tenths (207.5) feet measured vertically above the elevation at the end of the strip and eight thousand three hundred (8,300) feet measured horizontally from the end of the strip, the outer ends of the imaginary horizontal line being nine hundred and eighty (980) feet from the projected centre line,
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(e) a surface abutting the end of the strip associated with runway approach 07 consisting of an inclined plane having a ratio of one (1) foot measured vertically to forty (40) feet measured horizontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip, two hundred and seven and five tenths (207.5) feet measured vertically above the elevation at the end of the strip, and eight thousand three hundred (8,300) feet measured horizontally from the end of the strip, the outer ends of the imaginary horizontal line being nine hundred and eighty (980) feet from the projected centre line, and
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(f) a surface abutting the end of the strip associated with runway approach 25 consisting of an inclined plane having a ratio of one (1) foot measured vertically to forty (40) feet measured horizontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip, two hundred and seven and five tenths (207.5) feet measured vertically above the elevation at the end of the strip and eight thousand three hundred (8,300) feet measured horizontally from the end of the strip, the outer ends of the imaginary horizontal line being nine hundred and eighty (980) feet from the projected centre line,
