I don’t think they hold as consistently as in concrete. It’s all fill from stripping coal and is anywhere from rocks like marbles to bigger than cars. It’s a blue slate material a lot of times.
I used to tie ropes off to rocks with rock climbing anchors which is very similar to what Leon was doing. It was an expanding bolt and would hold a ton of weight guys take falls on them all the time rock climbing. I’ve debated connecting chained traps to boulders using them but I’m not sure it would hold all critters. Coyotes will sprint all night on a long chain or back leg catches I’ve learned.
Ol blue… we have seems of that it’s hard as can be. We have to dig graves in are family graveyard by hand and we hit it about 2 foot down and it goes about 2 foot thick. You gotta dig out under it then break it off with sledge hammers.
It goes 3" top soil 6" clay 3" lime stone then 1 foot of shaly clay and sandstone to solid sandstone then the blue stuff then clay and sand stone mixed with lime stone to the bottom (6’)
Know when we dig post hole you mostly use iron diggers and bust out a hole not so much “dig”
The anchors would work if you could drill out the lime stone but drilling like stone is rough work without some sirous drill.
We once put splash dams in a dry branch to hold back lead buck shot.
We took ropes and lowered a generator about 60’ down into a gorge and then climbed down in there with 1/2" drill and bored 3/4" holes in the bed rock. We would drill and cool the bit with water drill and cool, have to keep the cuttings blowed out too.
Well long story short we drilled 16 holes about 10" deep it took 3 days there was 3 of us and we would trade off and about a dozen bits. That real good lime stone is ruthless on bits.
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I am fortunate to not have all the rock and what not.most of mine are farm fields.sometimes I’ll run into hard pan but usually a super stake with 18” of chain drives fairly easy
Sounds to me like a guy would do well to cut a bunch of 8-10’ long poles about as big around as your forearm, or leg out of cedar, or locust , and lay them out ahead of season in pre selected spots if it’s open there; and then maybe have a camp saw to cut saplings on the spot where there is brush. I don’t think most critters would pull a sapling drag that size too far in most cases. Of course I’m talking land sets, as up and down water levels are a problem all there own!
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I use drags 75 % of the time.
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