Hooray! I did actually finish the blanket today! According to my Ravelry notebook I started working on this on Feb. 18, 2018. I actually thought I started sometime in December 2017, so it took less than a year of work, crocheting off and on.
The pattern is called the River Rock Blanket by Acquanetta Ferguson. The pattern is available for free on her blog, Olive + Brook. It’s actually really simple to do — just variations on double crochet. I opted to do my own border and worked two rows of single crochet around, and then this simple shell stitch border:
Shell Stitch Border
5 DC, sk st, SC, sk st
Repeat around and sl st into bottom of first DC.
(Feel free to fudge it on the spacing in order to get your shells just where you want them)
The blanket is huge and I am very much looking forward to getting cozy with it tonight while watching TV!