It's a shame how many people don't know how to use a compass, especially when the National Park Service lists it as a top 10 ...

Many GPS vehicle tracking solutions use proprietary software that can only be used on computers with the proper installation and can be subject to manual upgrades. The best GPS solutions provide the ...

Specifications & Guidelines for Establishment and Maintenance of Alberta Survey Control using GPS manual is used to establish and integrate survey control markers into the provincial spatial ...