phiko Posted December 14, 2008 Posted December 14, 2008 When positions of geocaches are given by coordinates, what datum is generally implied? NAD 27 or NAD 83? There is a big difference in actual location depending on which datum your GPS is set to. My USGS quad maps use NAD27. Any thoughts / Quote
+PDOP's Posted December 14, 2008 Posted December 14, 2008 (edited) WGS84. (it's noted at the bottom of every cache page) Edited December 14, 2008 by PDOP's Quote
+Foothills Drifter Posted December 14, 2008 Posted December 14, 2008 (edited) Howdy...... I believe you want to use WGS83 Vern / Foothills Drifter... ...........Ya beat me to it.....! Edited December 14, 2008 by Foothills Drifter Quote
+Foothills Drifter Posted December 14, 2008 Posted December 14, 2008 WGS84 I was close... Vern / Foothills Drifter... Quote
+trainlove Posted December 14, 2008 Posted December 14, 2008 WGS84 and NAD83 are just about exactly equal to within a meter everywhere from what I hear. Now NAD27 on the other hand as origianlly asked, is only good on old topo maps. Quote
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