The Kleinaspergle grave is still clearly visible on the ridge between Asperg and Möglingen. It was explored in 1879 by Oskar Fraas in a spectacular mining tunnel excavation. The main chamber had been robbed of ancient treasures, but a richly furnished side chamber yielded unique finds that exceeded all expectations. The grave, enclosed by a wooden frame, measured 3 by 2 meters. As far as can be seen from the excavation reports and drawings, in the chamber, dated to 430 BC, lay a small pile of ashes, close to a ring, an iron belt buckle covered with gold sheet, a dozen rounded gold plates, and four gold sheet strips. On the other side of the pile of ashes, two Greek clay bowls and two striking golden drinking horn ends were found. On the eastern side stood four bronze vessels: a large basin containing a wooden bowl, a bronze spouted jug considered an outstanding example of Celtic craftsmanship, a vessel with two handles, and a ribbed bucket. A rectangular memorial stone was placed on the site of the former stele in 1938. The area around Kleinaspergle has been designated a landscape conservation area since 1966.
In 1964, during grading work on the site of what is now the private and inaccessible property at Teckstrasse 14 in the Grafenbühl residential area, a grave covered by a massive, partially destroyed set of stones was discovered. Under the direction of Hartwig Zürn of the State Office for Monument Protection, the entire mound was examined. The mound, which is no longer visible, is believed to have had a diameter of approximately 40 meters. The chamber had already been plundered in ancient times. Two gold-plated bronze brooches, remains of a drinking vessel, and two bronze lion's feet from a kettle frame were found. Fragments of an iron chariot, various objects made of amber, ivory, and bone. The most beautiful are two sphinxes carved from bone with amber faces. The grave is dated to 500 BC.
The Asperg Celtic finds are housed in the Württemberg State Museum in Stuttgart. In 2007, a replica of the spouted jug from Kleinaspergle was made and is on display in the city's premises.