Crosskirk Fort
| Crosskirk Broch | |
|---|---|
| Crosskirk, Caithness, Scotland | |
Crosskirk Broch memorial cairn, overlooking the site of the broch.
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| Coordinates | 58°36′30″N 3°40′48″W / 58.608197°N 3.679948°WCoordinates: 58°36′30″N 3°40′48″W / 58.608197°N 3.679948°W |
| Site information | |
| Condition | Destroyed by the sea |
| Site history | |
| Built | Iron age |
| Materials | Stone |
Crosskirk Broch was a fortification near the present day hamlet of Crosskirk near Thurso, Caithness, Scotland. After thorough archaeological exploration it was destroyed in 1972 since the site had become unsafe due to sea erosion. The site was unusual in having a broch, a large circular fortification, built within an older promontory fortification with a ring wall and blockhouse.
Crosskirk was occupied at the end of the Bronze Age. From the early Iron Age that followed there is carinated pottery that appears to be locally made but is similar to pottery of the same period in southern and eastern England. A few samples are black-burnished. Uncorrected radiocarbon dates for this pottery are in the 6th and 5th centuries BC. There seems to be a discontinuity in the middle Iron Age when the buildings were reconstructed and new types of pottery and artifacts were introduced, although variants of some of the older styles continued. This may be interpreted as being due to the influx of some influential new population.
Further use of local pottery continued into the period of Roman occupation of the south of Scotland in 80-180 AD. There were also remains of Roman pottery and glassware that may have been Roman in origin. A body was buried in a sitting position in the middle of an approximately circular building around the time that the site was abandoned. No grave goods were found.
There are traces of two long cist burials in the debris of the broch from some time around 600 AD. There used to be a stone with a runic inscription at Crosskirk, now lost, dating from the period of the Norse raiders in the 9th, 10th and 11th centuries.St Mary's Chapel (Crosskirk), built around the 13th century and now ruined, is about 30 yards (27 m) south of the site. Some of the land south of the broch was levelled when St Mary's was built. In recent times, some of the stones from the broch mound were removed, perhaps for building field dykes.
The promontory fort predated the broch, which was built inside the older structure. The earlier structure was an outwork that began at the edge of the promontory in the east, a 15 feet (4.6 m) thick wall or rampart of rock with an earth core. A gateway that widened towards the outside provided access through the wall. To the west of the gateway the rampart included a structure like a cell, and then there was a recess in the inner face of the wall. The outwork continued west, ending in a fence made of flagstones that reached to the cliff edge at Chapel Geo.
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