This is the link above ... corrected
http://www.amazon.com/Log-Cabin-Chri.../dp/0922705291
Is this the one you are looking for?
However, you mentioned trees, so I am wondering if there were several of these in the quilt? or if it is something else?
Perhaps if you were to say where you saw the quilt others from that locale might know the specific pattern. (city and/or state/province/etc. if you don't want to say the LQS name)