» » Coordinates
Use UTM coordinates whenever possible, including on work reports to push out the Good-To Date of your claim.
If you click the little down-arrow-head, you can change the coordinates to Latitude/Longitude (in decimal degrees, degrees/minutes/seconds, etc.) or to UTM coordinates or other options.
Latitude and Longitude are the basic coordinates for locations. It would all be nice and simple if the Earth was perfectly round, but it isn't. This sorta makes a mess of the idea of latitude and longitude.
A "Datum" is a way map-maker's deal with this - an approximation of the shape of the Earth that makes the math easier. Different datums mean latitude and longitude are different.
MTO latitude and longitude use the "NAD83" datum (I think). The basic datum for your GPS is WGS84. They are very similar.
If you set the Datum on your GPS to NAD83, it may display MTO latitudes and longitudes.
UTM - coordinates used for many maps, including most of the kind of topographical maps that you have to pay for. They are commonly used to record, report and exchange location information. They are can be used for locations in Work Reports. Your GPS can probably display UTM coordinates.
UTM coordinates have a zone plus two numbers. An example zone is "10" or "10N" (Zone 10 North of the Equator). Most claims are all in one zone. The zone must be recorded or the coordinates are meaningless.
The two numbers are...
- an Easting - number of metres east of the zone's central meridian (plus 500,000 to prevent negative numbers).
- a Northing - number of metres north of the equator (the larger number).
So, the numbers are metres east-west and north-south - pretty close - some distortion because the Earth is round and because it is not perfectly round.
BC Albers - coordinates used by the old MTO mapping system (and some other mapping systems in BC). These coordinates are not good for reports, publishing or exchanging data except in special cases (ex. making Shapefiles to display points/lines/shapes on a BC Albers map).
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