so how exactly do i find reference point in this situation? just to refresh my decadant gps reliant skills
If you are on a slope, a monotonous function so to speak, and you know you are on the trail, knowing your altitude gives you your position on the map. That, in turn, will help you find the next crossroad and know in which direction to proceed, or will tell you whether you missed a crossroad.
Even with fog, you will recognize a little bridge, a pass that you know, a little stream that the trail crosses, and those are normally quoted on the map, and that will allow you to properly set your altimeter. In a foggy situation, an altimeter-map-compass combination is necessary. Map-compass alone is no good use in fog if one doesn't know exactly where he is. Proper use of map and altimeter gives a lot of information.
I do use a GPS but, before buying one, I considered an altimeter absolutely super-useful, necessary. In low mountain groups, full of woods, or with no clear known peak visible, I agree map and compass are not enough. I bought my altimeter in 1991 (in a Casio watch) and I still use it. The altimeter of my Garmin eTrex is more precise but the watch lets your hand free to grab the poles, it's a fast glance.