In addition to the Ruohomaa collection, the Penobscot Marine Museum has an in depth collection of photographic work by others, more and more of which is available online.
The Penobscot Marine Museum has added new images from Ruohomaa's Winter 1957 visit to Monhegan Island. The Monhegan shoot was one of the first Kosti did after renegotiating his contract with Black Star to give him more creative control and flexibility to develop his own assignments.
For anyone visiting Maine this season, the Penobscot Marine Museum is opening a new exhibit featuring Ruohomaa's work, which will run through from May 27 through October 16, 2022.