your knife need not be and should not be used as a prybar, wedge, etc. Indians didn't/couldn't do such things, and you can easily carry something that does a far better job, as in a machete, chisel, etc. If I gotta clear a lot of stuff just to make a campsite, I'll rather seek a better site for camping. Brush like that means ticks and leeches. When you're hiking, you're supposed to start looking for a campsite about halfway thru the afternoon, not at dusk!