41 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2003-02-11 12:09:26
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42 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-05-31 10:34:14
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43 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2001-02-01 13:12:36
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44 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-06-13 11:42:33
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45 | Add to Reading ListSource URL: roadrespect.utah.govLanguage: English - Date: 2014-05-21 11:41:26
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46 | Add to Reading ListSource URL: roadrespect.utah.govLanguage: English - Date: 2014-05-21 11:41:26
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47 | Add to Reading ListSource URL: www.msha.govLanguage: English - Date: 2014-07-18 14:24:45
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48 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-01-29 11:45:54
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49 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2010-01-27 09:50:08
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50 | Add to Reading ListSource URL: www.sheridancountynebraska.comLanguage: English - Date: 2012-04-18 04:09:58
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