At first, the villages did not have much influence on the Karkonosze Mountains. Of course, forests were cleared in their vicinity, arable fields and pastures were enlarged, but the settlements were more like forest enclaves. The immediate vicinity was certainly thoroughly penetrated by the inhabitants, however, the interior of the mountains remained inaccessible, unknown and mysterious.
This is a certain regularity of mountain areas, for example, it was noted with amazement in the nineteenth century. and later by the "discoverers" of the Tatra Mountains, Least, Czarnohora or other Carpathian ranges, who received the information in disbelief, that the highlanders not only do not know the official names of the surrounding peaks, but the vast majority have never been to them. The peasant knew the way to his field or meadow, to the inn, church and possibly some "authority"”. To go to the mountains, must have clearly motivated, and it is most often economical, so for wood, berries or mushrooms, possibly for hunting. Speaking more clearly, it was either theft, or poaching. Hence, for good reason, the first and the best experts in the area and tourist guides were various "blue birds", who could not sit still in their village.
In the Karkonosze and the neighboring ranges, such explorers, but to a limited extent and of a specific nature, were the Walloons. Few, for understandable reasons they tried to act rather discreetly, they avoided villages and local people, they did not flaunt their presence and hid their paths. They must have known these mountains best then, which, however, did not affect the general state of knowledge about them.
Much greater contribution to the penetration of the mountains, but in limited areas, the miners had, who were looking for ore deposits, as well as steel workers and dusters. This may seem strange, but that was the specificity of the Karkonosze Mountains. Just when you find some useful (sometimes only looking promising) deposits of ores or minerals, a mine was established here, and next to it, as a rule, a forge (smelting furnace or smelter) and of course a settlement. In turn, glassmakers, at that time producing the so-called forest glass – heavily contaminated, with a greenish tint – they wandered the mountains in search of suitable raw materials and locations. In both cases, in addition to raw materials for production (something, glass sands) it was also about energy resources, and then the only energy resource was wood obtained from inexhaustible forests.
From here to there, where the industry appeared, he was accompanied by lumberjacks and dusters. They were the first to cut down the surrounding forests, while others burned charcoal in charcoal, because it had a higher calorific value and only it gave the temperatures necessary for smelting the ore or glass.
Even these primitive and small steel mills consumed enormous amounts of wood, Therefore, their area was deforested in a relatively short time. At that time, there were two options: or move the smelter to a new location – usually deep into the mountains, up the creek valley, where the forests were still intact, or bring charcoal or wood to it from a greater distance. Glassworks usually "wandered" in search of fuel (were less related to the raw material base, because glass sands are quite common), while forges, more strongly associated with shafts and mines, rather, they stayed where they were. Only in the Kamienna valley, from Hurry to Eagle, you can count between the fourteenth and nineteenth centuries. at least 7-8 certified glassworks locations.