Since September 1997 the “Grids and Datums" column from each issue of PE&RS has been made available on this web site. They are listed below in calendar order.
Columns from September 1997 – November 2013 are in Adobe Acrobat PDF format and require Adobe Acrobat Reader in order to be viewed.
Columns from January 2014 to the present are in Flip Book format and require Adobe Flash Player to view. Free versions of Adobe Acrobat [or Flash Player] can be downloaded from http://www.adobe.com.
2023
2022
2021
2019
2018
2017
2016
2011-2016
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2015 Republic of the Marshall Islands (January) Principality of Andorra (February) Kingdom of Bhutan (March) Republic of Sudan (April) Datum Origins with Google Earth (May) Federal Republic of Germany (June) Democratic Repuglic of Timor-Leste (July) Principality of Monaco (August) Kingdom of Swaziland (September) Russian Federation (October) United States of America (November) |
2014 São Tomé & Príncipe (January) The World (February) Republic of India (March) Overseas Lands of French Polynesia (April) Kingdom of Tonga (May) Solomon Islands (June) Federated States of Micronesia (July) Republic of Chad (August) Kyrgyz Republic (September) Republic of Armenia (October) Republic of Iraq (November) Republic of Tajikstan (December) |
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2013 Republic of the Gambia (January) Republic of Belarus (February) Boznia and Herzegovina (March) Republic of Rwanda (April) Republic of Moldova (May) Kingdom of Nepal (June) Republic of Serbia (July) Islamic Republic of Iran (August) Federal Republic of Somalia (September) State of Burma (October) Togolese Republic (November) |
2012 Republic of Albania (January) Republic of Sierra Leone (February) Central African Republic (March) Commonwealth of Dominica (April) Republic of Macedonia (May) Georgia (June) Republic of Croatia (July) Republic of Uganda (August) Republic of South Africa (September) Maps in the Middle of Nowhere (October) United Mexican States (November) Turkmenistan (December) |
2011
Republic of Guinea-bissau (January)
Kingdom of Thailand (February)
Republic of Liberia (March)
Principality of Liechtenstein (April)
Republic of Malawi (May)
Montserrat (June)
Slovak Republic (July)
The Islands of Samoa (August)
Republic of Haïti (September)
Republic of Slovenia (October)
Republic of Niger (November)
Negara Brunei Darussalam (December)
2009-2010
2010
Democratic Socialist Republic of Sri Lanka (January)
Federation of Saint Kitts and Nevis (February)
Republic of The Congo (March)
Republic of Kazakhstan (April)
Republic of Senegal (May)
Republic of Cuba (June)
Republic of Malta (July)
The Republic of Cape Verde (August)
Republic of Azerbaijan (September)
Republic of Mali (October)
Republic of China (Taiwan) (November)
The State of Kuwait (December)
2009
The Federative Republic of Brazil (January)
The Federal Republic of Nigeria (February)
Belize (March)
Malaysia (April)
Republic of Nicaragua (May)
Islamic Republic of Mauritania (June)
Islamic Republic of Pakistan (July)
Territory of Guam (August)
Republic of Equatorial Guinea (September)
Republic of Indonesia (October)
Republic of Burundi (November)
Gibraltar (December)