From Pen + Paper Patterns:
A throw size quilt pattern perfect for the outdoor enthusiast OR for people, like me, who just think campers and trees are the cutest :) This entire pattern uses standard piecing and features detailed instructions, diagrams and tags to label your cuts of fabric - making it a great pattern for the ambitious beginner and up!
Quilt finishes 59 1/2" x 68 3/4"
A tutorial for making the trees snow-capped is on the P + P blog.