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Thread: How accurate is google maps?

  1. #1

    Join Date
    Aug 2010
    Posts
    7

    Default How accurate is google maps?

    I have noticed recently that some caches appear to be off by a fair amount. I though it was just my GPS unit, however when i google map the coords it also comes off as way out.

    So is google maps inaccurate?
    Do/should people check the placements with google maps before publishing?

  2. #2

    Default

    I've always found the Satellite image from Google Maps to be very accurate, I use it to check the co-ords on my caches, and also often use it as an aid when hunting caches.

  3. #3

    Default

    Quote Originally Posted by martybartfast View Post
    I've always found the Satellite image from Google Maps to be very accurate, I use it to check the co-ords on my caches, and also often use it as an aid when hunting caches.
    Must admit we use it in the same way and always found it spot on.

  4. #4

    Join Date
    May 2004
    Location
    South East Wales
    Posts
    277

    Default

    We use google maps to check cache placements and they seem fine. As for inaccurate coordinates..... We are seeing a lot more caches placed where the coords are out by anything from 50 to 60 feet up to several hundred feet. The worst I've seen is 2 miles! In nearly all cases it is because they've been recorded with an iPhone (usually - or other phone GPS).

    Chris
    Graculus
    Volunteer UK Reviewer for geocaching.com
    UK Geocaching Information & Resources website www.follow-the-arrow.co.uk

  5. #5

    Join Date
    Oct 2005
    Location
    Land of the Bear and Ragged Staff!
    Posts
    849

    Default

    Google -Maps and Streetview- often show roadside caches as being in the middle of the road around here!

    20+ feet off. :
    I have a Geocaching problem...
    Work gets in the way!

    * Cache Walker -Caching by byway, not highway! CacheWalker.co.uk
    Walking and Caching in Warwickshire, Worcestershire, Gloucestershire areas

  6. #6

    Join Date
    May 2004
    Location
    South East Wales
    Posts
    277

    Default

    20 to 30 feet isn't that bad for a GPS anyway, particularly if there are buildings or trees. With Streetview if you pan around or move up and down the road the view does change and often shows a slightly different placement for the cache.

    Chris
    Graculus
    Volunteer UK Reviewer for geocaching.com
    UK Geocaching Information & Resources website www.follow-the-arrow.co.uk
    Geocaching.com Knowledge Books

  7. #7

    Join Date
    Jun 2003
    Location
    Dalston, near Carlisle
    Posts
    78

    Default

    I check with GE on every cache I set. I find it more accurate. My GPSr is a Legend, about 6 or 7 years old now, and I find it to be, well, a bit out nowadays

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