While on the topic of woods, check around for neighbors with apple, cherry or pear trees, they need to trimmed periodically resulting in a lot of useful smoker wood. Also, after a storm, such as a wind storm or especially an ice storm (fruit trees are typically the most commonly damaged trees) look for damaged trees or tree limbs. As a result of an ice storm here in Kansas a few years ago we had two large pear trees, a cherry tree, a peach tree, and several large limbs from an apple tree available to anyone who wanted them. What was left ended up as firewood in our furnace. It really gave a great aroma in the house!
BTW: Check out the local dumping ground for tree limbs. At ours the city encourages us to help ourselves to all the free wood we want. We can easily get an abundant supply of oak, ash, and fruit tree woods from there too, and if you're into cottonwood, elm and cedar there is a lot of that too, but it's best reserved for the chipper unless you're completely out of firewood.
Tom Lehmann/The Dough Doctor