You said US-Made, 3-3.5in? I will just tell you what I use and why.
Folding:
Spyderco PM2 in Cruwear, this is a great knife in a tough tool steel that is quite stain-resistant! But this is more of a day-hike knife, more of a slicing knife, too... An even better knife for the outdoors is the
Shaman in CPM-M4, as that has a very strong tip, it is thick, it is like my "Striderco". Except it probably bites into hardwood better, and I cut wood and stuff, so. The steel is very tough and in a tough geometry. It is like a little pocket folding fixed blade that I take out with me. Wonderfully rec'd. ''
(Of course in addition to this you should pack a SAK, preferably a 91mm model like the Camper, Explorer, or Super Tinker)
Fixed:
Benchmade 200 in CPM-3V. Very tough knife, edge can take a beating from things and still cut. Also a very thick knife like the Shaman but not too thick - like a very luxury Mora, this is. Speaking of, a Mora is great to have in carbon - cheap, light, tough.
I also use a Buck 119. Basic, but tough and I like the knife for me campyard tasks.
Everything is USA made in a tough steel and M4 + Mora's carbon is the only of the bunch that require much maintenance or rust-worrying.