by Pteropus » Sun 10 Apr, 2011 9:54 pm
Last year I bought my first GPS for my own personal use. I always carry it now, but I rarely need it for navigation. I bought it mainly to record my tracks and also for the electronic topographic mapping supplied with it. I love maps and consider myself fairly handy with one, and don’t really need it for general navigation, but it does come in handy for off track navigation.
When I first started using the GPS I made the rookie GPS mistake when I went on my first big walk with my new toy, as I started to rely on it too much. After three days of walking I had become complacent by checking the GPS and not even bothering to get the map out. We were on a track (Kanangra to Katoomba in the Blue Mountains) where there were no real navigational difficulties, but made a simple navigation error at a track junction because we didn’t get the map out. The map would have shown we should have gone straight, but we went left because thats what it looked like we should do according to the GPS. After approximately a kilometre we discovered our mistake and had to back track. Lucky it was a simple mistake and we realised we were relying on the GPS much too much. A good lesson to learn....
It is handy to have the coordinates of your position at hand, especially in a forest where visual clues to the topography are limited. It is also handy for tracking back along your path or to marked waypoints. This Saturday just past I did a return walk to Fountain Falls in Lamington NP, via the Middle Ridge Traverse, from the top of Bull Ant Spur, just north of O’Reilly’s/Green Mountain. This is an off track walk, which has a faint foot pad, some of the time, and is mostly in thick sub-tropical rainforest. A mate and I each had a GPS, and route finding on the return journey was much easier using the GPS track on the map and waypoints we marked on the way in.