> 4 contour -Z4
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> 8 contour -Z8
-130.521566667	51.4175727362	8
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> 12 contour -Z12
-130.421566667	51.3647231528	12
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-130.631622396	51.2809300885	12
-130.621566667	51.2910712513	12
-130.614592218	51.2975761062	12
-130.6049	51.3053544524	12
-130.592450859	51.3142221239	12
-130.588233333	51.3169603333	12
-130.571566667	51.3266516704	12
-130.563097152	51.3308681416	12
-130.5549	51.3348317403	12
-130.538233333	51.3417819893	12
-130.521566667	51.3474298667	12
-130.521277362	51.3475141593	12
-130.5049	51.3524985783	12
-130.488233333	51.3565569937	12
-130.471566667	51.3597139328	12
-130.4549	51.3620670434	12
-130.438233333	51.3636927531	12
-130.430130627	51.364160177	12
-130.421566667	51.3647231528	12
> 16 contour -Z16
-130.471566667	51.3167223331	16
-130.4549	51.3201845148	16
-130.438233333	51.3225611455	16
-130.421566667	51.3239483818	16
-130.4049	51.3244042954	16
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-130.371566667	51.3225610404	16
-130.3549	51.3201843551	16
-130.338233333	51.3167221198	16
-130.329081911	51.3142221239	16
-130.321566667	51.3122172119	16
-130.3049	51.3065714162	16
-130.288233333	51.299324822	16
-130.284777443	51.2975761062	16
-130.271566667	51.2903435855	16
-130.257414062	51.2809300885	16
-130.2549	51.2789724301	16
-130.238382683	51.2642840708	16
-130.238233333	51.2641125596	16
-130.224898428	51.2476380531	16
-130.221566667	51.2415728053	16
-130.215857743	51.2309920354	16
-130.210669565	51.2143460177	16
-130.209018872	51.1977	16
-130.210731397	51.1810539823	16
-130.215981045	51.1644079646	16
-130.221566667	51.1541086404	16
-130.225069917	51.1477619469	16
-130.238233333	51.1315303003	16
-130.238594684	51.1311159292	16
-130.2549	51.1166150929	16
-130.257652961	51.1144699115	16
-130.271566667	51.105201496	16
-130.285011905	51.0978238938	16
-130.288233333	51.0961894964	16
-130.3049	51.0889116561	16
-130.321566667	51.0832401966	16
-130.329266355	51.0811778761	16
-130.338233333	51.0787184339	16
-130.3549	51.0752396279	16
-130.371566667	51.0728515127	16
-130.388233333	51.0714575316	16
-130.4049	51.0709993637	16
-130.421566667	51.071457475	16
-130.438233333	51.0728513946	16
-130.4549	51.0752394657	16
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-130.5049	51.0889113227	16
-130.521566667	51.0961890589	16
-130.524788976	51.0978238938	16
-130.538233333	51.1052009722	16
-130.552147889	51.1144699115	16
-130.5549	51.1166144212	16
-130.571206134	51.1311159292	16
-130.571566667	51.1315293597	16
-130.584730784	51.1477619469	16
-130.588233333	51.1541074121	16
-130.593819494	51.1644079646	16
-130.599068998	51.1810539823	16
-130.600781477	51.1977	16
-130.599130837	51.2143460177	16
-130.593942792	51.2309920354	16
-130.588233333	51.2415740059	16
-130.584902242	51.2476380531	16
-130.571566667	51.2641134655	16
-130.571418105	51.2642840708	16
-130.5549	51.2789730899	16
-130.552386773	51.2809300885	16
-130.538233333	51.2903440965	16
-130.525023365	51.2975761062	16
-130.521566667	51.2993252196	16
-130.5049	51.3065717347	16
-130.488233333	51.312217461	16
-130.480718951	51.3142221239	16
-130.471566667	51.3167223331	16
> 20 contour -Z20
-130.471566667	51.2822462261	20
-130.4549	51.2870440538	20
-130.438233333	51.2903026243	20
-130.421566667	51.2921899689	20
-130.4049	51.292807717	20
-130.388233333	51.2921898995	20
-130.371566667	51.2903024824	20
-130.3549	51.2870438469	20
-130.338233333	51.2822459596	20
-130.334686777	51.2809300885	20
-130.321566667	51.275659815	20
-130.3049	51.2668682849	20
-130.300807736	51.2642840708	20
-130.288233333	51.2545190444	20
-130.280690764	51.2476380531	20
-130.271566667	51.2358310613	20
-130.268128639	51.2309920354	20
-130.261113746	51.2143460177	20
-130.258889235	51.1977	20
-130.261158826	51.1810539823	20
-130.268215937	51.1644079646	20
-130.271566667	51.1597020014	20
-130.280809383	51.1477619469	20
-130.288233333	51.140989691	20
-130.300941138	51.1311159292	20
-130.3049	51.1286127393	20
-130.321566667	51.1197991135	20
-130.334802765	51.1144699115	20
-130.338233333	51.1131938351	20
-130.3549	51.1083803598	20
-130.371566667	51.1051107592	20
-130.388233333	51.1032168533	20
-130.4049	51.1025968936	20
-130.421566667	51.1032167799	20
-130.438233333	51.1051106193	20
-130.4549	51.1083801475	20
-130.471566667	51.1131935232	20
-130.474998104	51.1144699115	20
-130.488233333	51.1197987147	20
-130.5049	51.1286122402	20
-130.508859677	51.1311159292	20
-130.521566667	51.140988999	20
-130.528991407	51.1477619469	20
-130.538233333	51.1597008872	20
-130.541584878	51.1644079646	20
-130.548641975	51.1810539823	20
-130.550911569	51.1977	20
-130.548687077	51.2143460177	20
-130.541672199	51.2309920354	20
-130.538233333	51.2358322108	20
-130.529110052	51.2476380531	20
-130.521566667	51.2545197499	20
-130.508993057	51.2642840708	20
-130.5049	51.2668687649	20
-130.488233333	51.275660192	20
-130.475113985	51.2809300885	20
-130.471566667	51.2822462261	20
> 24 contour -Z24
-130.4049	51.2644234344	24
-130.402264335	51.2642840708	24
-130.388233333	51.2634897117	24
-130.371566667	51.2605991729	24
-130.3549	51.2555657953	24
-130.338233333	51.2480686772	24
-130.337480055	51.2476380531	24
-130.321566667	51.2354642266	24
-130.316844937	51.2309920354	24
-130.30642465	51.2143460177	24
-130.3049	51.206716121	24
-130.303200863	51.1977	24
-130.3049	51.1887705013	24
-130.306456312	51.1810539823	24
-130.316900579	51.1644079646	24
-130.321566667	51.1599894345	24
-130.337544543	51.1477619469	24
-130.338233333	51.1473677702	24
-130.3549	51.1398581777	24
-130.371566667	51.1348148228	24
-130.388233333	51.131917949	24
-130.402368044	51.1311159292	24
-130.4049	51.1309817415	24
-130.407432226	51.1311159292	24
-130.421566667	51.1319178478	24
-130.438233333	51.1348146233	24
-130.4549	51.1398578702	24
-130.471566667	51.1473673312	24
-130.47225623	51.1477619469	24
-130.488233333	51.159988728	24
-130.4929002	51.1644079646	24
-130.503344505	51.1810539823	24
-130.5049	51.1887664314	24
-130.506599915	51.1977	24
-130.5049	51.2067201701	24
-130.503376145	51.2143460177	24
-130.492955818	51.2309920354	24
-130.488233333	51.2354649047	24
-130.472320689	51.2476380531	24
-130.471566667	51.2480690989	24
-130.4549	51.255566086	24
-130.438233333	51.2605993545	24
-130.421566667	51.263489799	24
-130.407535906	51.2642840708	24
-130.4049	51.2644234344	24
> 28 contour -Z28
-130.4049	51.232106191	28
-130.392923766	51.2309920354	28
-130.388233333	51.2303323736	28
-130.371566667	51.2231886401	28
-130.359558866	51.2143460177	28
-130.3549	51.2039529122	28
-130.352794327	51.1977	28
-130.3549	51.1914646589	28
-130.359577533	51.1810539823	28
-130.371566667	51.1722248843	28
-130.388233333	51.1650767753	28
-130.39298479	51.1644079646	28
-130.4049	51.1632983591	28
-130.416816384	51.1644079646	28
-130.421566667	51.1650765431	28
-130.438233333	51.1722244051	28
-130.450223312	51.1810539823	28
-130.4549	51.1914625921	28
-130.457006398	51.1977	28
-130.4549	51.2039549541	28
-130.450241933	51.2143460177	28
-130.438233333	51.2231890658	28
-130.421566667	51.2303325542	28
-130.416877152	51.2309920354	28
-130.4049	51.232106191	28