Beware apparently intact wooden structures.
Nails don't fair so well in those environments.
Perfect buoyancy, not kicking dust around is your friend.
Yeah I was thinking the same thing, does anybody know how well brick structures hold up in a lake with no current?
The lake in Montana, Clark Canyon Reservoir, has Armstead under it (lewis-clark.org/content/content-article.asp?ArticleID=1946), and I have seen pictures from 1970 of a two story brick schoolhouse.. Still trying to find a depth of the town listed somewhere, by this summer I should be certified to dive up to 140'