Cross-draw/horiztontal carry is my prefered method of carrying a smaller fixed blade (also helps since my right side usually has a pistol on it).
It works well with a backpack, partially concealed, easy to access (and re-sheath), takes minimal effort to access and is very a very comfortable position for my activities.
Rainwalker has made a couple of very nice horizontal sheaths for some Bark River Knives (I have a similar one for my Wet Envrio knife):
Martin Knives has somebody making a very functional system for their knives:
Robert Marcinek made me a very functional horizontal Ram sheath for my SBT:
Spyderco makes a very functional sheath for horizontal carry and one of my favorite knives for travel-carry:
As I dug a few others out today, I noticed my go-to hunting knife is a Bob Dozier Yukon Skinner with his Kydex horizontal/cross-draw sheath. My Brian Andrews Bushcrafter has a geat horizontal sheath as well. I have noticed that if you don't have a deep pouch style or other means of retention, it's good to have a light angle. Also, I prefer the two-strap attachment method, but if the belt loop is wide, it will work just as well.
ROCK6