PIXEL RANGE: 50 50 3150 4424               :
GRID RANGE:   9000'00"  7600'00"    9200'00"  7640'00"  :

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For each line, value 0 denotes the type, see below.

Values 1,2 denote the pixel coordinates of the start of the contour.

The types are as follows:-

16 for a fixed height contour. Its elevation is shown by value 3. The rest of the line consists of course values from 0 to 7, denoting movement to a neighbouring pixel in a direction E,NE,N,NW,W,SW,S,SE respectively.

17 for a spot height, elevation shown by value 3. No course values follow.

18 for variable height and water body contours. The start and end elevations are shown by values 3 and 4. A second type value follows, see below. Course values follow as in type 16. For coastline, lakes and islands, the start and end elevations will be the same, but for ridges, river banks and streams, they may not.

19 for a small lake or island of indefinite height. Value 3 is set to 42 for a lake or 43 for an island, as for second type below. Type 19's are always closed rings and their direction is always anti-clockwise.

Second Type Values (Types 18 and 19): 40 = Ridge; 41 = Valley; 42 = Water body on left; 43 = Water body on right
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17 2746 4040 25 
17 2944 4109 42 
17 2289 4110 27 
18 2751 4026 0 0 43 4 5 5 5 4 5 5 5 4 5 5 4 5 5 5 4 4 5 5 5 5 4 5 5 5 5 5 5 5 5 6 6 5 7 6 7 7 7 7 7 7 0 7 0 0 1 0 0 0 1 1 0 0 0 0 0 7 7 7 7 0 7 7 0 0 0 0 0 0 0 0 0 0 0 7 0 7 7 7 0 0 0 0 7 0 0 0 0 1 0 1 1 1 1 2 1 1 2 1 2 2 2 2 3 2 2 2 3 3 2 2 2 2 3 3 3 3 4 4 4 3 2 3 3 4 4 3 3 3 3 4 3 3 3 3 4 3 3 3 4 3 4 5 
18 2365 4099 0 0 42 5 5 4 5 4 4 4 4 4 3 4 3 2 2 1 0 0 0 0 1 2 1 0 0 0 7 7 7 6 5 
18 2422 4121 0 0 42 6 5 5 5 5 4 4 4 4 3 3 3 3 2 2 2 3 2 2 2 2 1 2 1 1 0 0 0 0 1 7 7 7 7 7 5 6 6 7 6 6 6 
18 2297 4126 0 0 42 4 4 4 4 4 4 4 4 3 3 3 2 3 3 3 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 2 2 2 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 7 0 0 0 0 0 0 7 0 0 0 0 0 1 1 0 7 0 0 0 1 0 0 7 0 0 0 7 7 0 7 7 7 6 6 7 6 5 6 5 4 4 4 5 4 5 4 4 4 4 4 5 6 5 4 4 5 5 6 5 4 4 4 5 4 5 5 5 4 5 5 4 4 4 4 
18 2937 4162 0 0 42 3 3 3 3 4 3 3 4 4 3 3 3 4 4 4 3 4 3 3 3 4 3 3 4 3 3 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 4 4 3 4 4 4 3 4 3 4 4 4 4 4 5 4 4 4 4 4 5 4 4 4 4 4 4 3 4 3 4 3 3 3 3 3 2 2 2 2 2 2 2 1 1 2 2 1 2 1 2 1 1 2 2 2 2 3 3 4 5 5 4 5 5 4 4 4 4 3 4 4 4 4 3 4 4 4 3 4 4 4 4 3 3 3 4 4 4 3 3 4 5 4 3 2 2 2 3 4 4 3 2 2 3 2 2 3 2 3 2 3 2 3 4 3 2 3 4 4 3 4 3 2 3 2 2 2 2 1 0 1 0 1 0 1 1 1 1 1 0 1 0 0 0 1 0 7 7 0 1 0 7 0 7 0 0 0 0 0 0 0 0 0 0 0 7 0 0 0 1 0 0 0 0 1 0 1 1 1 2 3 3 2 1 2 2 1 2 1 2 1 2 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 1 2 1 2 2 1 1 1 1 1 0 1 0 0 1 1 0 0 0 0 7 0 0 7 7 7 7 7 7 7 6 7 7 7 7 0 7 7 7 0 7 7 7 7 7 7 7 0 7 6 7 7 6 6 6 7 6 7 6 6 6 6 7 7 6 6 6 7 7 7 7 7 0 7 0 0 0 0 0 0 0 1 1 2 1 0 1 1 1 0 0 0 0 1 0 7 0 7 0 7 0 0 7 0 0 0 0 7 0 0 0 0 7 0 0 7 0 0 0 7 6 7 7 7 0 7 7 0 7 0 0 0 0 0 0 0 0 0 1 0 0 7 0 1 0 0 0 0 0 0 0 1 1 2 1 0 1 1 2 1 0 0 1 1 0 0 0 0 0 0 7 7 7 6 6 6 7 7 7 0 0 1 0 0 0 7 0 0 1 2 2 2 2 3 2 2 2 1 2 1 1 2 1 0 1 2 2 1 0 0 1 0 0 0 0 7 7 0 7 7 7 0 7 7 0 7 7 0 0 7 7 6 6 6 5 5 5 5 5 6 7 6 7 6 7 7 6 7 6 6 6 6 5 6 5 6 5 6 6 6 6 7 6 6 5 4 4 4 4 4 4 4 3 4 3 3 3 3 3 3 3 3 3 3 3 3 2 3 3 3 3 4 3 3 4 5 4 5 4 5 6 6 5 6 5 4 5 6 5 6 5 6 5 6 5 6 5 6 6 6 6 5 5 6 7 6 5 6 5 6 6 6 6 6 6 5 6 6 6 6 6 5 6 6 7 6 5 4 4 5 5 5 4 4 4 4 4 4 4 4 3 3 4 4 4 4 4 4 5 4 5 4 5 5 6 6 7 6 7 7 0 7 7 6 5 4 5 5 5 5 4 4 5 6 6 5 5 4 4 4 5 4 4 5 5 4 4 5 4 5 5 4 4 4 5 4 4 4 4 3 4 4 4 4 4 4 4 3 4 4 4 4 3 4 3 4 
16 2743 4035 20 5 4 5 4 5 4 5 4 5 5 5 5 6 5 6 6 7 0 0 0 0 0 0 0 7 0 0 0 7 0 7 0 7 7 7 0 0 7 0 0 0 7 0 0 0 0 7 0 0 0 0 0 7 0 0 1 1 2 3 2 2 3 4 3 3 4 3 3 4 3 3 3 4 3 3 4 3 3 4 3 3 4 3 3 3 4 4 4 
16 2876 4046 20 5 5 5 5 5 6 5 6 5 6 6 6 6 5 6 7 6 6 6 6 6 7 6 6 6 5 6 6 5 6 6 5 6 5 6 6 5 6 5 4 4 4 4 4 4 4 4 3 4 4 4 3 4 4 3 4 4 4 4 4 3 4 4 4 4 4 4 4 4 3 4 4 4 4 4 4 4 3 4 4 4 4 4 4 4 5 5 6 6 7 6 7 7 6 7 6 7 6 7 6 7 6 7 6 7 7 7 0 7 0 0 0 0 0 7 0 0 0 7 0 0 0 7 0 7 0 7 0 7 0 0 7 0 0 1 0 0 0 1 0 0 0 0 7 0 7 7 7 6 5 6 6 6 6 5 6 6 6 6 6 6 6 5 6 6 6 6 6 7 6 7 0 0 0 7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 7 0 0 0 7 0 7 0 7 0 7 0 0 0 7 0 7 7 0 7 7 7 7 0 7 7 0 7 0 7 0 0 7 7 0 0 7 0 7 0 7 0 0 7 0 0 7 0 7 0 0 0 0 7 0 1 0 0 0 0 1 0 1 0 0 1 0 1 0 1 1 1 1 0 1 1 2 1 2 2 2 2 2 2 3 2 2 2 2 2 1 1 0 1 0 0 1 0 0 0 0 0 7 0 0 0 0 0 0 0 1 0 0 1 1 1 1 1 2 2 2 1 2 2 2 2 1 2 2 2 2 2 2 2 1 2 1 2 2 2 2 2 2 2 2 2 2 2 1 0 0 0 1 0 1 2 1 1 2 1 2 2 1 2 3 3 3 3 3 3 3 4 5 4 5 5 5 4 5 5 5 4 5 5 6 5 4 4 5 4 4 5 4 4 3 4 4 4 4 4 3 4 4 4 4 4 3 4 4 4 3 4 3 4 4 3 4 3 4 4 3 4 3 4 3 3 4 3 4 4 3 4 4 4 4 3 4 4 4 4 3 4 5 4 4 4 5 5 6 5 5 4 5 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 4 3 4 3 2 2 3 3 2 3 2 2 3 2 2 3 2 3 2 2 3 2 2 3 2 3 3 3 3 3 3 3 3 3 3 3 3 4 4 3 4 4 4 4 4 4 
16 3036 4080 20 5 6 6 6 6 6 7 6 6 6 7 6 7 7 7 0 0 1 1 2 2 2 2 3 2 2 2 3 2 2 2 3 4 4 4 4 4 
16 2935 4095 40 5 4 4 5 5 5 6 5 6 5 6 5 6 6 7 6 7 6 7 7 7 7 7 7 7 7 7 0 0 7 0 7 0 0 0 0 0 0 0 0 0 0 1 0 0 1 2 1 1 2 2 1 2 2 2 1 2 2 3 3 2 3 3 4 3 3 3 4 3 3 4 3 4 4 3 4 4 4 3 4 4 4 4 4 
16 2281 4102 20 5 5 5 6 6 7 6 7 7 7 6 7 7 7 6 7 7 7 6 7 7 0 0 7 0 1 0 1 1 0 1 1 1 1 1 1 0 1 1 0 1 0 1 0 0 1 0 0 0 0 0 1 2 2 2 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 4 3 4 4 3 4 4 4 4 4 4 4 4 

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