This Mosaic Crochet Throw seems difficult but is very easy in execution. Mosaic Crochet is very similar to Mosaic Knitting. You work one color per row, with drops (often called a long double crochet stitch) to the row of the second color to make the vertical lines. This is the easiest way to learn colorwork in knitting, and I think it is true for crochet as well. Enjoy! Link of the pattern is below!
Southwestern Mosaic Cross Throw
by Tara Sensenbaugh
Southwestern Mosaic Cross Throw [ FREE CROCHET PATTERN ] downloadable pattern is available here.