{"id":101,"date":"2026-09-15T00:11:35","date_gmt":"2026-09-15T00:11:35","guid":{"rendered":"https:\/\/www.npoles.com\/?page_id=101"},"modified":"2026-09-15T00:11:35","modified_gmt":"2026-09-15T00:11:35","slug":"maps-and-data","status":"publish","type":"page","link":"https:\/\/www.npoles.com\/index.php\/maps-and-data\/","title":{"rendered":"Maps, marks and datums"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">What nPoles and nPoles Field mini draw under the survey, and the coordinate systems they work in.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1876\" height=\"913\" src=\"https:\/\/www.npoles.com\/wp-content\/uploads\/2026\/09\/npoles-plan-view-aerial.jpg\" alt=\"nPoles plan view: a pole line on Victorian aerial imagery with property boundaries and survey marks\" class=\"wp-image-72\" srcset=\"https:\/\/www.npoles.com\/wp-content\/uploads\/2026\/09\/npoles-plan-view-aerial.jpg 1876w, https:\/\/www.npoles.com\/wp-content\/uploads\/2026\/09\/npoles-plan-view-aerial-300x146.jpg 300w, https:\/\/www.npoles.com\/wp-content\/uploads\/2026\/09\/npoles-plan-view-aerial-1024x498.jpg 1024w, https:\/\/www.npoles.com\/wp-content\/uploads\/2026\/09\/npoles-plan-view-aerial-768x374.jpg 768w, https:\/\/www.npoles.com\/wp-content\/uploads\/2026\/09\/npoles-plan-view-aerial-1536x748.jpg 1536w\" sizes=\"auto, (max-width: 1876px) 100vw, 1876px\" \/><figcaption class=\"wp-element-caption\">Victorian aerial imagery with property boundaries and survey marks switched on<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Australia<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th><\/th><th>Vic<\/th><th>NSW<\/th><th>Qld<\/th><th>SA<\/th><th>Tas<\/th><th>ACT<\/th><th>WA<\/th><th>NT<\/th><\/tr><\/thead><tbody><tr><td>Survey marks<\/td><td>\u2713 SMES, with sketch plans<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>own data<\/td><td>\u2014<\/td><\/tr><tr><td>Property boundaries<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>own data<\/td><td>\u2014<\/td><\/tr><tr><td>Basemap<\/td><td>Vicmap aerial and map<\/td><td>NSW imagery, base and topo<\/td><td>aerial<\/td><td>national base map<\/td><td>aerial<\/td><td>national base map<\/td><td>national base map<\/td><td>national base map<\/td><\/tr><tr><td>Ground level for a new point<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2014<\/td><td>\u2014<\/td><td>\u2014<\/td><td>\u2014<\/td><td>\u2014<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Victoria also has road casements, street names, cadastral corners, contours, spot heights and the coastline. <em>Own data<\/em> is the surveyor&#8217;s own licensed GeoPackage, such as Landgate&#8217;s, added under Layers \u2192 Map Data. OpenStreetMap is available everywhere.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Overseas<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>New Zealand:<\/strong> LINZ survey marks, boundary marks, parcels and roads; aerial imagery with the surveyor&#8217;s own free LINZ key.<\/li>\n\n\n<li><strong>Switzerland:<\/strong> all 32,125 published fixed points, cantonal cadastre, swisstopo maps and aerial imagery back to 1946.<\/li>\n\n\n<li><strong>Live property boundaries (desktop):<\/strong> the Netherlands (with the RD survey marks), France and Estonia.<\/li>\n\n\n<li><strong>National maps:<\/strong> Austria, the Netherlands, France, Spain, Germany, Norway, Czechia, Estonia, the United States, Japan, Argentina and Singapore, with Finland and Great Britain on the surveyor&#8217;s own free key.<\/li>\n\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Datums and heights<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Australia:<\/strong> GDA2020 and GDA94 (MGA), AGD66 and AGD84, AHD through AUSGeoid2020, local and mine grids tied to MGA.<\/li>\n\n\n<li><strong>New Zealand:<\/strong> NZGD2000 (NZTM), NZVD2016 through NZGeoid2016.<\/li>\n\n\n<li><strong>Switzerland:<\/strong> CH1903+\/LV95, LN02 or LHN95 through CHGeo2004.<\/li>\n\n\n<li><strong>Elsewhere:<\/strong> Ireland (ITM), South Africa (Hartebeesthoek94 LO), ETRS89 on UTM across Europe, and WGS84 UTM worldwide.<\/li>\n\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Map data remains \u00a9 its publishers, each credited on screen while its layer is on.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What nPoles and nPoles Field mini draw under the survey, and the coordinate systems they work in. Australia Vic NSW Qld SA Tas ACT WA NT Survey marks \u2713 SMES, with sketch plans \u2713 \u2713 \u2713 \u2713 \u2713 own data \u2014 Property boundaries \u2713 \u2713 \u2713 \u2713 \u2713 \u2713 own data \u2014 Basemap Vicmap aerial [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-101","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.npoles.com\/index.php\/wp-json\/wp\/v2\/pages\/101","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.npoles.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.npoles.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.npoles.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.npoles.com\/index.php\/wp-json\/wp\/v2\/comments?post=101"}],"version-history":[{"count":1,"href":"https:\/\/www.npoles.com\/index.php\/wp-json\/wp\/v2\/pages\/101\/revisions"}],"predecessor-version":[{"id":102,"href":"https:\/\/www.npoles.com\/index.php\/wp-json\/wp\/v2\/pages\/101\/revisions\/102"}],"wp:attachment":[{"href":"https:\/\/www.npoles.com\/index.php\/wp-json\/wp\/v2\/media?parent=101"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}