The Caldera Cone stoves are all U.S. made and, IMHO, the most efficient alky/ESBIT burner setups around, not to mention their Inferno woodburner option.
What gets tricky is the "electronics gear". Is there ANY topo GPS made in the U.S.?
Likely no cameras are, even Kodaks.
And then there are clothes. Nice synthetic clothes are all made offshore except a few sox companies products like Thorlo. But I wouldn't mind buying a Canadian Tilley hat... when I hit the lottery.
What we need to see is PAN American products made in this hemisphere to strengthen our North and South American economies. Colombia (the country, not the clothing manufacturer) now makes a lot of clothing but most of it is designer stuff. They COULD make outdoor clothing if the U.S. companies like REI would channel their contracts that way.
BTW, when I think of it I do have a fair amount of USA-made backpacking products like:
WM Megalite bag, TT Moment tent, Thermarest (3 self-inflators), Caldera Cone Sidewinder/Inferno, 2 MSR stoves, 2 Camelbak bladders, Dana Terraplane pack.
But I also have a decent amount of items from "Yurp". Swedish Primus & Svea stoves, Norwegian & Austrian backcountry skis, German walking poles, Swedish compass, Austrian Dachstein wool mittens, etc.