There's good news and bad news about where to find morels. Again, there is an abundance of folk wisdom to help you. The morel-nurturing properties of elm trees are highly touted, as are proximity to apple, ash, basswood and cherry trees.
Folk wisdom suggest looking for morels near elm, aple, ash, basswood and cherry trees.
Hunting for mushrooms is often good after spring showers. However, I haven't noticed that I find many more mushrooms in open stands of old trees than in relatively young forests. And I have a near-religious faith in the likelihood of finding morels around trees that have been dead just long enough for their bark to being sloughing off. My theory is that the roots of these trees also are beginning to decay, providing ready nourishment for fungi, including my beloved morels. I've never checked it out, but many morel fanciers claim that abandoned apple orchards are morel hotbeds.