Getting compass directions from GPS coordinates?

Posted by jdemaris on October 14, 2010 at 15:42:01 from (67.142.130.29):

I'm sure this should be easy, but like anything . . . it's not easy when you don't know how.

I'm trying to verify the direction of a property line.

Surveyor has the line running 70 degrees. To be technical, it reads "S. 70 degrees - 30' - 41" E

Somebody remarked the line and it's running 100 degrees with a hand-held compass. Even with the 13.6 degrees W of magnetic deviation, that's nowhere near 70 degrees, correct?

So, I took two GPS readings. With an imaginary line drawn between those two readings - how do I calculate a compass direction for that line?

Point one - (in three different formats)

43.727003333333336 by 75.85231166666666

43 degrees, 43 minutes, 37 seconds - by - 75 degrees, 51 minutes, 8 seconds

43N 43.6202 by 75W 51.1387

Point two - (in three different formats)

43.72702777777778 by 75.85075

43 degrees, 43 mintutes, 37.3 seconds - by - 75 degrees, 51 minutes, 2.7 seconds

43N 43.621666 by 75W 51.045

Replies:

• Re: Getting compass directions from GPS coordinates? dave2 02:10:08 10/15/10 (0)
• Re: Getting compass directions from GPS coordinates? 2x4 21:32:35 10/14/10 (0)
• Re: Getting compass directions from GPS coordinates? ttfb1911 17:09:33 10/14/10 (1)
  • Re: Getting compass directions from GPS coordinates? jdemaris 17:21:44 10/14/10 (0)
• Re: Getting compass directions from GPS coordinates? big fred 17:07:37 10/14/10 (0)
• Re: Getting compass directions from GPS coordinates? bjd49 16:17:51 10/14/10 (1)
  • Re: Getting compass directions from GPS coordinates? jdemaris 17:09:15 10/14/10 (0)
• Re: Getting compass directions from GPS coordinates? ldj 16:08:48 10/14/10 (0)
• Re: Getting compass directions from GPS coordinates? ldj 16:02:22 10/14/10 (0)

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