That was a spawned out King Salmon hen. The area I was fishing does recieve steelhead, but typically they do not spawn until spring time and that is the best time to target them. Our salmon can look different from the ones out west. In northern Michigan you can expect kings as early as late July at times, then usually coho start showing up in October. Atlantic salmon are few and far between, although you might find one here and there unless you are fishing for them in the St. Mary's river, Salmon River in NY, or a few select other tribs.
Hope this helps.
Juro, let me know if you are up for some surf fishing anytime. If you still plan on attending this year's spey clave, if you want to stay an extra day I might be able to put you on some fish out in the open lake. It is very unique, and is well worth the effort.