71 | Add to Reading ListSource URL: www.sdgs.usd.eduLanguage: English - Date: 2012-09-13 11:24:43
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72 | Add to Reading ListSource URL: www.nbmg.unr.eduLanguage: English - Date: 2010-05-31 18:41:52
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73 | Add to Reading ListSource URL: datapreservation.usgs.govLanguage: English - Date: 2010-09-02 12:17:19
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74 | Add to Reading ListSource URL: www.emnrd.state.nm.usLanguage: English - Date: 2011-02-11 18:27:18
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75 | Add to Reading ListSource URL: www.blm.govLanguage: English - Date: 2014-09-11 03:50:25
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76 | Add to Reading ListSource URL: www.michigan.govLanguage: English - Date: 2014-07-01 10:42:32
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77 | Add to Reading ListSource URL: www.gwpc.orgLanguage: English - Date: 2012-06-06 19:25:51
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78 | Add to Reading ListSource URL: datapreservation.usgs.govLanguage: English - Date: 2010-09-02 12:27:52
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79 | Add to Reading ListSource URL: www.conservation.ca.govLanguage: English - Date: 2014-08-05 15:01:02
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80 | Add to Reading ListSource URL: michigan.govLanguage: English - Date: 2014-06-02 16:56:01
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