[sandworm101]

It depends on terrain. I hiked/climber in BC for a decade pre-gps. We carried maps but rarely ever used them for navigation, as opposed to planning. Mountain peaks on the horizon (real mountains, not UK hills) made navigation very intuitive. Even in zero visibility, the slope of the terrain keeps you orientated. Sound is also a huge aspect. One can "feel" a forrest through the fog because it sucks up sound, as opposed to rock mountains that echo.