The Dolmen de Soto is a Neolithic passage tomb in Trigueros, Andalucia, Spain, dated to between 3000 and 2500 BC. Discovered in 1923 by Armando de Soto Morillas and excavated by German archaeologist Hugo Obermaier, the tomb stretches nearly 21 metres in length with 64 upright stones supporting 20 capstones. Obermaier uncovered eight crouched burials accompanied by stone axes, flint knives, and ceramics. Recent photogrammetric surveys (2016-2017) revealed previously unknown rock art engravings including dagger motifs on the interior stones. Declared a National Monument in 1931.
Dolmen de Soto

| Type | Dolmen |
|---|---|
| Period | 4500 - 3000 BC |
| Country | Spain |
| Coordinates | 37.3524° N, 6.7515° W |
Spain