I carry a small (18") electric chainsaw with me. It's handy for cutting firewood up to about 8" in diameter. Several times wood carvers have asked me to cut flat rounds out of fallen lumber for them to carve on. The saw is also handy for clearing smaller trees which block access roads. It's not a workhorse by any means though. Light duty only.
Several times other campers have asked me to clear a few stray branches that block access (clearance) to otherwise perfect campsites. In certain areas, the rangers should be consulted before cutting anything.
Chum lee