The information given by everyone is very usefull, but a two way radio, and a compass would be a big help as well, and they don't take up any space. Again, I've been told to take the courses and ask lots of questions in the lodge or cabin with the guides before heading anywhere on my own or even partnered. But they will tell you, in instances when you will be going a distance, never go it alone and always leave a map of your plan and time frame behind with someone in the case that you do not return at a descent hour. I hope it helps. Enjoy your trip!