Gayle at Mangofeet provided a link to this fabulous quilt. Gayle had already started on hers and was naming it Demented instead of Garden Mosaic.
However, I have a very strong allergy to HSTs (half-square triangles) and a first attempt at making the block for that quilt demonstrated many lopped off points. So that was the end of that...
I suggest ironing all the seams toward the dark.
There is wiggle room provided here so you will have a sliver of fabric left over after cutting the mountain units off of each side. You are getting two mountain units from each rectangular four patch.
Also, there is another quilt I am eyeing over at Wonkyworld. I figured out that this quilt can also be made from mountain units. In this case, they are sewn side by side to form vertical stripes. Then those stripes are sewn together to make the quilt. Yes, the internet is a dangerous place.