After much staring at pictures and various guides people have pointed me to I think this is actually a Tundra swan for these reasons:
1, Sharp prominent curves in bill around gape
2. In all of my pictures there is evidence of the yellow teardrop marking on the lore. It looks like a reflection at first but it is in the same location at different angles and has some degree of yellow in it.
3. The area of the bill where it joins the eye is relatively narrow
4. The shape of the back is not as evenly rounded as the tundra
Thanks for all of the comments.