Figure 6 key. Sima de las Palomas: vertical elevation.

A  upper most entrance to the shaft 18m above the main chamber floor
1  height at which CG-1 was found in 1991
2,3  heights at which argonite crystals were taken and dated by U-Th
sediment removed by excavations Uupper cutting
Llower cutting
 iron security grille, on which is base mark x, from which are measured points y and z on scaffolding tower
 thin rim of former calcrete flow over uppermost entrance
 cemented features
 breccia
 lenses of burnt soil
 stalactite
 unexcavated
 scaffolding tower in front of breccia and low burnt soil lenses