Topographical Map Blanket

I finished these blankets a few weeks before Christmas. I made one for my nephew that is 3 months old, and one for my fiance that is 24 years old.

It is a topographical map blanket.
I sewed the grading yarn onto the blanket with a zig-zag stitch. I sewed the yarn in organic shapes. (I couldn't really control the way the shapes came out completely because I was shoving half a blanket through the arm of the sewing machine.) I think they turned out great.