From:
"Mike Teague" <yngwie@triax.com>
Sent: 1/16/2001 7:52:09 PM
To:
gpsstash@egroups.com
Cc:
Bcc:
Subject:

Re: [gpsstash] Re: WGS84!


and just to add a little bit..... NAD83 is equivalent to WGS84, if I
remember correctly..


A quick look at one of my 7.5' DRG's for SW Washington state says "22
meters north, and 92 meters east" to place it on the NAD83.. so, thats
considerable... in geocaching at least...




Mike Teague - http://www.triax.com/yngwie



----- Original Message -----
From:
To:
Sent: Tuesday, January 16, 2001 3:13 PM
Subject: [gpsstash] Re: WGS84!


> The difference between WGS84 and NAD27 varies from location to
> location. If you look in the lower left corner of a paper topo
> map, there will be text telling you the difference between the
> two for that map. Here in Phoenix, AZ, it says "To place on the
> predicted North American Datum 1983 move the projections lines 2
> meters south and 66 meter east as shown by the dashed corner ticks."
>
> These dashed corner ticks are where the corners of the NAD27 map
> should be if it was drawn using WGS83. In other words, if you were
> hunting a stash, you'd be about 66 meters off of where it really
> was FOR ARIZONA. I have seen some maps where the difference is
> less - Cincinnati is 3 meters south and 5 meters west.
>
> Bob Renner
>
> --- In gpsstash@egroups.com, "M. Hannan" wrote:
> > Out of curiosity (and being too lazy to dig on my own), how far
> apart are
> > they, relationally speaking (inches, feet, miles) or is this
> question way
> > off course? Is there a standard difference?
> >
> >
> > m@
>
>
>
> The gpsstash page
> http://www.geocaching.com
> The GPS Stash Hunt page.
> http://www.triax.com/~yngwie/gps.html
>
> GeoCache HQ
> http://www.braveheart.com.au
> GPS Stash Hunt FAQ :
> http://www.triax.com/~yngwie/stashfaq.txt
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>