As far as wood on the ground, it depends on the type of wood and the climate. Some woods, such as osage can lay on the ground for years and still make a bow. As far as climate, wet is bad for salvaging wood, it promotes rot and fungus growth. As Del said though, "any wood is better than no wood" is very true. And every one on this site can also tell you, you learn by doing. Make the bow, if it breaks, you have still got the experiance and the next will be better. Bill