> 7.5 contour -Z7.5
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> 15 contour -Z15
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> 22.5 contour -Z22.5
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-107.595369599	18.6293038123	22.5
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-107.644075757	18.6792920821	22.5
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-107.677602668	18.7792686217	22.5
-107.677612141	18.7959313783	22.5
-107.676143308	18.8125941349	22.5
-107.673116144	18.8292568915	22.5
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> 30 contour -Z30
-107.519	18.9317133024	30
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-107.316170471	18.8292568915	30
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-107.310207465	18.7959313783	30
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-107.552333333	18.9168767468	30
-107.535666667	18.9254347608	30
-107.525528671	18.9292334311	30
-107.519	18.9317133024	30
> 37.5 contour -Z37.5
-107.502333333	18.8995610221	37.5
-107.485666667	18.9029694798	37.5
-107.469	18.9040740066	37.5
-107.452333333	18.902969444	37.5
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-107.394262017	18.8792451613	37.5
-107.385666667	18.8722729059	37.5
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-107.502333333	18.8995610221	37.5
> 45 contour -Z45
-107.502333333	18.8673173734	45
-107.485666667	18.8719792968	45
-107.469	18.873479737	45
-107.452333333	18.8719792362	45
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-107.402333333	18.8450350227	45
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-107.379671744	18.7792686217	45
-107.383147925	18.7626058651	45
-107.385666667	18.7566040322	45
-107.390623869	18.7459431085	45
-107.402333333	18.730189178	45
-107.403179445	18.7292803519	45
-107.419	18.7164061789	45
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-107.534820456	18.7292803519	45
-107.535666667	18.7301892992	45
-107.547375636	18.7459431085	45
-107.552333333	18.7566055091	45
-107.554851328	18.7626058651	45
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-107.558331297	18.7959313783	45
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-107.547393343	18.8292568915	45
-107.535666667	18.8450348996	45
-107.534842861	18.8459196481	45
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-107.502333333	18.8673173734	45
> 52.5 contour -Z52.5
-107.502333333	18.8324231003	52.5
-107.485666667	18.8401596227	52.5
-107.469	18.8426343275	52.5
-107.452333333	18.8401595125	52.5
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-107.41764784	18.7626058651	52.5
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-107.520352307	18.7626058651	52.5
-107.525741272	18.7792686217	52.5
-107.52574403	18.7959313783	52.5
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-107.502333333	18.8324231003	52.5