Co-produced by Jean Martin (a drummer and percussionist known for his work with Tanya Tagaq) and again featuring The South Seas, Niagara was named Album of the Year 2014 by Rolling Stone Germany and Canada's National Post.

All Music's four-star review of the album said, "Southworth delivers some of the most serpentine and complex melodies of his career...one of his most fully realized and imaginative works.

"[7] A show featuring an art film directed by Southworth with accompanying live performance premiered in Toronto in March 2022 at the Paradise Theater.

[8] Southworth's songs have been covered by or written for such artists as The Weather Station, Basia Bulat, Kevin Johansen, Sarah Slean, Luke Temple, Buck 65, Hawksley Workman, Jully Black, Martin Tielli and Veda Hille.

[9] Daydreams For Night, an alternative children's book featuring illustrations by David Ouimet, was published by Azuka in Japan and Simply Read in 2015.