Canada, guys. Most if not all of the mentioned vendors aren't up here.
Dennis mentions 'Windsor Plywood'...I think they're right across the country up here.
Another route to go is joining a woodworkers group; a lot of really helpful info and guys that'll likely share/sell (some of) their wood supply.
In many cases their domestic hardwood came from private deals; somebody cut down a maple and somebody else cut'r up and milled it.
Up here Maple Birch, Alder, Apple, Cherry, Arbutus and Yellow Cedar (on the West Coast), Chestnut, Walnut and others, should be fairly easily found through the personal contact route, Al.
I really like Birch myself, so don't often venture elsewhere species wise.
I had mentioned a while back, Mohawks 'Radiant ' line of stains....do yourselves a huge
favour and try one out! You can make Birch look like Cherry. Designer Stains Radiant Series - Mohawk Finishing