> 1 contour -Z1
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> 2 contour -Z2
-117.604666667	34.0961800681	2
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> 3 contour -Z3
-117.604666667	34.0789389005	3
-117.588	34.0817149866	3
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-117.554666667	34.0816844496	3
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> 4 contour -Z4
-117.604666667	34.0632239206	4
-117.588	34.0659332909	4
-117.571333333	34.0658521295	4
-117.554666667	34.0633293397	4
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> 5 contour -Z5
-117.604666667	34.0502684258	5
-117.588	34.0533435526	5
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> 6 contour -Z6
-117.604666667	34.0388439185	6
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-117.554666667	34.0421893715	6
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> 7 contour -Z7
-117.604666667	34.0285139661	7
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> 8 contour -Z8
-117.571333333	34.0269211126	8
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