Data: For Probable Trackline
CRA Hydrography Service 2010

Converting Latitude/Longitude Coordinates
Chart

Fractions of degrees are broken down into minutes and seconds. Each minute represents 1/60th of a degree and each second represents 1/60th of a minute (or 1/3600th of a degree). Below are the steps of converting from an angle in degrees-minutes-seconds to decimal degrees and back to degrees-minutes-seconds.

Converting Degrees, Minutes, Seconds to Decimal Format

latitude and longitude in a decimal format: 46.9972
latitude and longitude in degree, minute, second format: 46deg, 59min, 50sec

To convert coordinates from degrees, minutes,
seconds format to decimal format, use this easy formula:

degrees + (minutes/60) + (seconds/3600)

The example coordinate above would be calculated as:

46 + (59/60) + (50/3600) = 46.9972
or
46 + (.9833) + (.0139) = 46.9972

DM.m = Degrees, Minutes, Decimal Minutes (eg. 45o 22.6333)
D.d = Degrees, Decimal Degrees (eg. 45.3772o)
DMS = Degrees, Minutes, Seconds (eg. 45o 22' 38")

(1) DMS --> DM.m (45o 22' 38" --> 45o 22.6333)

- Divide S by 60 to get .m (38/60=.6333)
- Add .m to M to get M.m (22+.6333=22.6333)

(2) DM.m --> D.d (45o 22.6333 --> 45.3772)

- Divide M.m by 60 to get .d (22.6333/60=.3772)
- Add .d to D to get D.d (45+.3772=45.3772)

(3) D.d --> DM.m (45.3772 --> 45o 22.6320)

- Multiply .d by 60 to get M.m (.3772*60=22.6320)

(4) DM.m --> DMS (45o 22.6320 --> 45o 22' 38")

- Multiply .m by 60 to get S(.6320*60=38)

The Edmund Fitzgerald Rest .0555 Statue Miles - .4392 Nautical Miles -
2669 Feet - 889.74 Yards from the US / Canada line.

Center of wreck site
46 59.8N - 85 06.7W
46 59 48N - 85 06 42W