We are using Geography of the 50 States, available at http://www.statehistory.net/. We are thoroughly enjoying it and are combining it with 50 States Under God to cover each state's history. I am using these with ages 15, 12, and 9. There is also an edition available for young learners (age 3 to grade 3). These are great help in building a US notebook keepsake. The information is more than state bird, flag, motto; neither is it extremely broad with too many tiny details; it is just right in our opinion. It is nice to have something that is complete enough that I don't feel like I have to pick and choose from several resources to cover the subject. I do that in enough other areas that a truly open-and-go manual is appreciated.
Mrs. Hearts