What terrific good luck...free wood! Word of advice, make sure that you don't ever burn pressure-treated stuff; everything in that pic is obviously not, but scraps of that might show up and should be avoided. Back in Ontario I had a local lumberyard that would leave stacks of used wooden pallets by the road, free for the taking. I was taking!
Here in Manitoba, during years when I have worked a lot of hours in the north, I have indeed bought wood, pre-cut to length, requiring only splitting. When you are away from home for 3 weeks at a stretch and then home for only one, believe me, there are more pressing things (family, fish, beer, etc.) to occupy your time than plying a chainsaw all day. In more recent years, I have moved more and more towards semi-retirement, so I have plenty of time and have been cutting my own. I have assembled a nice little collection of axes, mauls, hatchets and other wood-splitting tools and very much enjoy splitting my own; I will never come to enjoy the actual cutting.
Land of the tree? Yes, we have lots of trees...all of which grow on land which belongs to someone. You can't just stop your truck at a likely spot, hop out with a chainsaw and start felling trees! I live on just over 100acres, most of which is treed, so I am able to selectively cut my own trees and improve the property for deer and wildlife while feeding my woodstove at the same time. Win/win.
Enjoy the lovely fragrance, wonderful dry heat and crackling sound of that nice new stove!