Cavechat.org

Posted: **Dec 30, 2009 6:23 pm**

For all us surveyors looks like we will need to be more diligent on those declinations

http://news.nationalgeographic.com/news ... -core.html

Posted: **Dec 30, 2009 6:45 pm**

Good to know. Thanks for the head's up.

Magnetic North gallops towards russia