At the foot of the Lousberg, dark gray, clayey to sandy sediments of the so-called Hergenrath layers were deposited, which formed in a swampy river delta.

Due to the water-storing properties of the deposits, the clay of the Hergenrath layers forms the most important spring horizon in the region, both on the Lousberg and in the Aachen Forest.

In the Campanian, tectonic movements began to increase, which are associated with the sinking of the Lower Rhine Bight and led to the uplift of the Lousberg Floe.

Due to the poor consolidation of this debris, small landslides still occur today, as evidenced by the uprooted trees and cracks in the footpaths.

From an ornithological point of view, the Lousberg is very rich in species, as studies carried out by the RWTH Aachen University have shown.

This gray flint, easily recognizable by its characteristic chocolate-brown color zones, was used to make axes and other tools, most of which were polished on-site or brought to settlements as semi-finished products.

The Stone Age mining of flint has almost completely reclaimed the central plateau of the Lousberg, which originally consisted of a 6 m thick layer of calcareous limestone.

At the beginning of the 19th century, the Napoleonic geographer Jean Joseph Tranchot began the topographic survey of the Rhineland at the scale of 1:20000, starting from a triangulation point on the Lousberg.

On 17 October 1807 the French Ministry of War erected a bluestone obelisk in honor of Tranchot and his colleagues, based on a design by the engineering geographer Capitaine Boucher.

On 15 May 1815 the obelisk was re-erected by order of the Prussian Baron Karl von Müffling, who continued the surveying work on behalf of the Kingdom of Prussia.

The idea of planting the Lousberg is said to have originated in 1806 and to have been promoted by Johann Wilhelm Körfgen (1769–1829), secretary general of the prefecture of the département of Roer.

While the public authorities had to provide the land for the project and carry out the planting work, it was up to the limited company to raise the funds to build the society house.

It was a popular destination for walkers, along with other features such as the Tranchot Obelisk, a Monopteros on the site of today's revolving tower, and a small Chinese pagoda.

At the end of the 19th century, according to the plans of Aachen's director of gardens Heinrich Grube, the park areas of the Lousberg were extended eastwards to include the areas of the Salvatorberg, so that a network of green spaces could be created with the city fortifications (northern parts of the ring of avenues) planned by Maximilian Friedrich Weyhe from 1807 and with today's municipal gardens designed by Peter Joseph Lenné in 1852.

The open-air stage on the Lousberg, which was built like a Greek theater on the hillside facing the city, failed not least because of the Aachen weather.

However, he was tricked by a poor woman and dropped the pile of sand north of the city, creating a larger and smaller mountain.

The legend is commemorated by a group of bronze statues on the Lousberg, depicting a farmer's wife and a devil, created in 1985 by Aachen artist Krista Löneke-Kemmerling.