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The approach surfaces, shown on Red Lake Airport Zoning Plan No. 60-041 86-112, Sheets 4, 5 and 6, dated September 28, 1988, are planes abutting each end of the strip associated with runway designated 08-26 and are described as follows:
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(a) an inclined plane abutting the end of the strip associated with the approach to runway 08 having a ratio of 1 m measured vertically to 40 m measured horizontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip and distant 1 792 m measured horizontally from the end of the strip; the outer ends of the imaginary horizontal line being 343.8 m from the projected centre line; said imaginary horizontal line being 44.8 m above the elevation at the end of the strip; and
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(b) an inclined plane abutting the end of the strip associated with the approach to runway 26 having a ratio of 1 m measured vertically to 40 m measured horizontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip and distant 1 536 m measured horizontally from the end of the strip; the outer ends of the imaginary horizontal line being 305.4 m from the projected centre line; said imaginary horizontal line being 38.4 m above the elevation at the end of the strip.
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