The elevation is located in the southwestern part of the Góry Kaczawskie mountains, in the Mały Grzbiet (Small Ridge), towering directly above the buildings of the village of Płoszczyna.
Geologically, Stromiec is located within the tectonic Wleń Rift, which formed during tectonic movements at the boundary of the Cretaceous and Paleogene periods. In this rift, sedimentary rocks from the Mesozoic era have survived, including those from the Triassic and Late Cretaceous periods. Stromiec is composed of the youngest rocks preserved within the rift—limestone sandstones, which have survived in a few locations in the eastern part of the rift. Geomorphologically, Stromiec is considered an example of inversion relief. This term refers to a situation where rocks deposited in the central part of a sedimentary basin form a hill that rises above the surroundings due to more efficient denudation within the rocks that once built the wings of the syncline.
The summit area was a site of sandstone extraction for use as a building material, likely since the end of the Middle Ages. Remnants of mining activity include the workings of former quarries on both sides of the ridge line and grooves on the slope used to transport extracted blocks. At the northern foothill of the hill, there are faint remains of surface gold prospecting.
Trip from Płoszczyna:
