If you are talking mountain men it depends on group size. Trapping brigades had camp keepers who regularly used three wood tripods lashed with rope and an iron chain and hook to suspend a cast iron bell pot. How long do you suppose it would take to feed an entire brigade if you had to cook and feed everyone from a frying pan? See Alfred Jacob Miller's paintings, Mountain Man Sketchbooks by Hanson and Wilson and Rex Allen Norman's 1837 Sketchbook. Ciboleros (Mexican buffalo hunters) used a iron comal (flat griddle with a handle). Fur trade forts like Bent's Old Fort used a lot of cast iron pots and skillets, sheet metal coals, sheet metal coffee pots with grates, swing away crane pot holders in addition to the tripods. Had hornos - (adobe ovens) too. Alexander Barclay, superintendent and clerk at the fort complained about monotonous meals of fried slabs of bison meat that were already partly dried. Free trappers, voyageurs, courier de bois would have traveled lighter having to pack everything on their horse and pack animals (mules). Decide on the persona and period you wish to re enact and do your homework, A big fad of the long hunter re enactors were the sheet metal frying pans with folding handles, American Mountain Men camp outs required hauling everything for the outing half a mile from the vehicles. Made you pare down to the essentials that research showed they actually used.