Archaeological excavations of Mound 6 at Ngre Kataa in 2009 expose a workshop where blacksmiths produced iron and copper-alloy tools and ornaments. The mound is being excavated in 2 x 2 meter units named for the coordinates of their northeast corner. In unit 50N 0W (foreground), an area of burned soil marks the location where blacksmiths heated metals. A pottery jar sits in place to the right. In surrounding units (50N 2W, 48N 0W, 48N 2W) are large anvil stones where the hot metals would have been hammered and shaped through forging. The mound's stratified deposits suggest that the workshop area was used for many decades, and perhaps centuries, between the years of about 1350 and 1520 CE (Common Era). View across the mound from the northeast looking towards the southwest. Site Ngre Kataa. 27 June, 2009.
Several grinding stones, a whole pot and a cluster of pottery sherds have been exposed in situ at the base of level 3, unit 44N 4W at Mound 6, Ngre Kataa. The large grinding stone in the foreground (grinding stone 1, NK-08-112) is oriented with its grinding surface facing down. Another smaller stone rests on a soil pedestal created as archaeologists excavated surrounding soil to a lower level. Upper right, a whole pottery jar (NK-08-176) sits next to a large grinding stone (grinding stone 3, NK-08-173) oriented with its grinding surface up. To the far left, above the photo scale in centimeters, archaeologists have exposed the edges of a pottery jar, broken in half and lying on its side. As excavations extended into the adjacent unit (42N 4W, to the left), this broken pot was found to be associated with two tuyere fragments. This cluster of grindstones, tuyeres and nearby burned features is interpreted as part of a larger metal-working workshop, the activities of which led to the build up of mound 6. The soil on the right side of the unit is darker because it is moister than that on the left. View to west. Site Ngre Kataa. 1 July, 2008.
Excavations in unit 42N 4W have exposed clusters of pottery, grinding stones, tuyeres and an area of burned soil associated with metal working at Mound 6, Ngre Kataa. Foreground, left, a grinding stone (GS 08-10) rests with its working surface face down. It sits at a slightly higher level than a nearby (left) whole pottery jar (NK 08-406). To the right of these, a partial pot (NK 08-282) and a tuyere fragment (NK 08-284) are clustered together with two halves of a broken pottery jar, lying with its exterior surface facing down. To the south (behind), near the sign board and framed by photo scales, is a burned feature. Next to it sits a hand-held hammerstone (GS 08-11). Another partial pottery jar (NK 08-520) and a small flat grinding stone (GS 08-12) have been exposed to the left of the sign board at 77 cm below the unit's datum. The narrow dark bands visible in the soil are the traces of animal burrows. Photo scale adjacent to the sign board in centimeters. View looking south. Site Ngre Kataa. 7 July 2008.
The circular outline of a burned basin (Feature 3) is bracketed by photo scales (center) in unit 50N 4W (130 cm below the unit datum) at Mound 6. A pottery jar sits to the right side of the basin, its opening covered by a potsherd lid. To the left, a grinding stone sits, grinding surface down, over top of another pottery jar. Burned features like these were associated with metal working in this Mound 6 workshop area. Photo scale at bottom in centimeters. Site Ngre Kataa. 29 June, 2009.
The circular outline of a burned basin (Feature 3) is bracketed by photo scales (left of center) in unit 50N 4W (130 cm below the unit datum) at Mound 6. A pottery jar sits to the right side of the basin, its opening covered by a potsherd lid. To the left, a grinding stone sits, grinding surface down, over top of another pottery jar. Another grinding stone (far left) sits at a higher level in unit 50N 6W. A second burned feature is associated with a grinding stone tipped on its side, far right. Another pottery jar sits nearby, also lidded with a broken sherd. Burned features like these were associated with metal working in this Mound 6 workshop area. Photo scale at bottom in centimeters. Site Ngre Kataa. 29 June, 2009.
A finger ring made of twisted copper alloy wire is photographed in situ. Base of level 5, unit 44N 4W, Mound 6, Ngre Kataa. Scale in 5 centimeter increments. Ngre Kataa, 8 July, 2009.
The mouth of a perforated shrine pot (left) is covered with the pedestaled base of another pot. It remains in situ as the surrounding areas of unit 46N 2W are excavated to lower levels. Behind, the stratified layers of Mound 6 are visible in the unit's north wall. Center (back) are a series of anvil and grinding stones exposed at higher mound levels in other excavation units. During excavations in 2008, a cluster of four anvil/grinding stones was found at a level slightly higher than but adjacent (left/west) to the perforated pot. At right, in lower levels, two grinding stones rest at an angle in association with a burned feature. Archaeologists interpret Mound 6 as a metallurgical workshop at which stratified levels built up through repeated use of the same location. Photo scale in centimeters. Site Ngre Kataa. 2 July, 2009.
Insitu pottery and iron artifacts associated with clusters B and C of what archaeologists interpret as a shrine (clusters A-D) which capped stratified deposits in a metallurgical workshop. Far left in unit 48N 10W, the flat surface of an anvil/grinding stone (GS 09-32) is exposed, to the left (west) of which a poorly preserved portion of an elephant tusk was found (now removed). To the right (east) of the large stone is Cluster B, which includes the group of sherds seen in the vertical exposure in front and left (west) of the tree stump. Behind the tree stump is a large cluster (C) of pottery lids, partial pots and iron objects. Photo scale marked in 5 cm increments. View looking towards northwest. Site Ngre Kataa. 10 June 2009.
Insitu pottery and iron artifacts associated with clusters B-D of what archaeologists interpret as a shrine (clusters A-D) which capped stratified deposits in a metallurgical workshop. Bottom left, at the base of a balk supporting the unit peg, is cluster D, comprised of two stones flanking an iron disc, laid flat (SF 09-158), and a tri-looped iron bangle (SF 09-159). In front and left (east) of the tree stump is a large cluster (C) of pottery lids, partial pots and iron objects, including an iron bangle (SF 09-148) and a pair of miniature iron manacles (SF 09-171, "B"-shaped object). To the right (west) of the tree stump, another cluster of pottery and iron objects can be seen. Top right of the photo, a yellow notebook rests on top of an anvil/grinding stone (GS 09-32), next to which rested a poorly preserved section of an elephant ivory tusk. North arrow photo scale marked in 5 cm increments, arrow pointing north. View looking towards southwest. Site Ngre Kataa. 10 June 2009.
View across open excavations in an area (mound 6) that archaeologists interpret as a metallurgical workshop. The photo centers on units 46N 8W (foreground) and the southern half of 48N 8W, the north wall of which (at 47N) can be seen behind the sign board. The exposed areas were excavated in 2008 and the photo taken in preparation for 2009 excavations. Traces of circular burned features, red-orange and yellow in color, can be seen in the freshly scraped surface of these units. The uppermost north arrow sits to the right (east) of the circular outline of a still-buried everted-rim jar. Another everted-jar rim can be seen exposed in the north wall at 47N. This rim and associated artifacts formed cluster B, part of a larger shrine feature (clusters A-D) that extended across the northern half of unit 48N 8W (beneath and behind the small tree trunk visible above and left of the sign board). Cluster A (unit 46N 8W) comprised a large pottery bowl surrounded by six iron bangles that was removed in 2008. It was positioned above and slightly west (left) of the burned feature (center photo) that is intersected by a tree root. Cluster B included the artifacts seen here in the north wall at 47N, together with an associated cluster of a pedestal-handled pot lid, dog skull and jaw bones revealed by further excavation beneath and west (left) of the tree stump. In the upper right of the photo (north and east), insitu anvil (GS 09-15, left) and grinding (GS 09-12, right) stones are visible in unit 50N 6W. Photo scales marked in 5 cm increments and measuring tape marks 2 m. Arrows pointing north. Site Ngre Kataa. 6 June 2009.
Insitu anvil/grinding stones in excavation unit 50N 6W in an area (mound 6) that archaeologists interpret as a metallurgical workshop. A large anvil stone (GS 09-15, foreground, left) sits next to a small stone, its lower surface worn flat by serving as a hand-held grinder. A large tree root is visible to the west of the stone, behind which is an area of unexcavated soil on top of which pottery sherds had been found (now removed). To the east and flanked by the black-and-white photo scale is the partial rim of an everted-rim jar (NK 09-749). To the north of this, a large flat grinding stone (GS 09-12) has been pedestaled in place. Photo scales marked in 5 cm increments. Arrows pointing north. Site Ngre Kataa. 6 June 2009.
Rights:
Creative Commons Attribution-NonCommercial
Publisher:
University of Victoria Libraries
Provenance:
Ngre Kataa, Mound 6, Unit 50N 6W, Level 4
Date:
2009-06-06
Location(s) Facet:
Ngre Kataa
Subjects:
Anvil stone; Grinding stone
Subjects Facet:
Excavations (Archaeology); Pottery; Metalworking; Iron
Insitu anvil/grinding stones in excavation unit 50N 6W in an area (mound 6) that archaeologists interpret as a metallurgical workshop. Left of center photo, a large anvil stone (GS 09-15) sits next to a small stone, its lower surface worn flat by serving as a hand-held grinder. Behind this stone is an area of unexcavated soil on top of which pottery sherds had been found (now removed). Lower foreground, flanked by the black-and-white photo scale, is the partial rim of an everted-rim jar (NK 09-749). To the north of this (right), a large flat grinding stone with a well-worn upper surface (GS 09-12) has been pedestaled in place. Visible in the southern corner of the west wall of the unit (upper left) in this photo is a flat iron disk (SF 09-159), embedded in the wall above a small stone. Photo scales marked in 5 cm increments. Arrows pointing north. Site Ngre Kataa. 6 June 2009.
Rights:
Creative Commons Attribution-NonCommercial
Publisher:
University of Victoria Libraries
Provenance:
Ngre Kataa, Mound 6, Unit 50N 6W, Level 4
Date:
2009-06-06
Location(s) Facet:
Ngre Kataa
Subjects:
Anvil stone; Grinding stone
Subjects Facet:
Excavations (Archaeology); Pottery; Metalworking; Iron
Insitu pottery and iron artifacts associated with clusters C and D of what archaeologists interpret as a shrine that capped stratified deposits in a metallurgical workshop. Cluster D appears in the foreground, left, below unexcavated soil remaining around the 48N 8W unit peg. Here two small stones flank a flat iron disc (SF 09-159, left) and a tri-looped iron bangle (SF 09-158, right). Cluster C is a large grouping of pottery and iron objects located north of the tree stump, center photo. Included were several whole pottery lids, a broken but mostly complete jar associated with an iron bangle (SF 09-148) and a pair of miniature iron manacles (SF 09-171). The bangle is visible, resting on a soil pedestal in front of the tree trunk's center. In the photo's upper right, a large anvil stone (GS 09-32), on which sits a yellow notebook, is visible. Flanking this stone on its western edge was a portion of an ivory tusk. Photo scale marked in 5 cm increments. Arrow pointing north. Site Ngre Kataa. 10 June 2009.
Insitu pottery and iron artifacts associated with cluster C of what archaeologists interpret as a shrine (clusters A-D) that capped stratified deposits in a metallurgical workshop. Center photo are two large pieces of an everted-rim jar, its exterior surface facing outward. Immediately above is a large portion of the same pot, its interior surface facing outward. Found positioned against the jar's interior surface was a pair of miniature iron manacles (SF 09-171, "B"-shaped object). An iron bangle (SF 09-148) was positioned at the jar's mouth, above the manacles. To the left of the bangle is the upper edge of a large grinding stone (GS 09-26), which later excavations revealed to be oriented with its grinding surface down. To the right of the bangle, a pedestal-handled pot lid (NK 09-381) rests with its interior surface oriented upward. At center photo, bottom, a pot lid with a strap handle (NK 09-382) rests on its side. To the right of the north arrow, portions of an another pedestal-handled pot lid lie with its interior oriented upward. Photo scale at upper right marked in cm. Arrow pointing north. Site Ngre Kataa. 10 June 2009.
Insitu pottery and iron artifacts associated with cluster C of what archaeologists interpret as a shrine (clusters A-D) that capped stratified deposits in a metallurgical workshop. Lower center of the photo are two large pieces of an everted-rim jar, its exterior surface facing outward. Immediately above is a large portion of the same pot, its interior surface facing outward. Found positioned against the jar's interior surface was a pair of miniature iron manacles (SF 09-171, "B"-shaped object). An iron bangle (SF 09-148) was positioned at the jar's mouth, above the manacles. To the left of the bangle is the upper edge of a large grinding stone (GS 09-26), which later excavations revealed to be oriented with its grinding surface down. To the right of the bangle, a pedestal-handled pot lid (NK 09-381) rests with its interior surface oriented upward. Photo scale marked in cm. View looking south. Site Ngre Kataa. 10 June 2009.
Excavation of a shrine cluster, two images. The image on left shows a pottery cluster, first exposed in June 2008, as it appeared on 10 June 2009. At bottom center of this image is a pedestal base, above which is a tight cluster of rim sherds. The curved sherd on the far right in this image is the outer edge of the pedestal-handled lid, which is fully exposed in the photo on the right, taken on 16 June 2009. A dog skull in a highly friable state is visible above and to the right of this lid in both photos. In the imgae on the right, an iron bangle (SF 09-219) can be seen resting in an angled position, below and left of which is a dog mandible. These were uncovered by excavation below and behind the pedestal base seen in the picture on the left. Photo scale marked in 5 cm increments. Site Ngre Kataa. 10 and 16 June 2009.
Two views of insitu anvil/grinding stones in excavation unit 50N 6W, part of an area (mound 6) that archaeologists interpret as a metallurgical workshop. In the photo looking northward (arrows point north), a large anvil stone (GS 09-15, foreground, left) sits next to a small stone, its lower surface worn flat by serving as a hand-held grinder. A large tree root is visible to the west of the stone, behind which is an area of unexcavated soil on top of which pottery sherds had been found (now removed). To the east and flanked by the black-and-white photo scale is the partial rim of an everted-rim jar (NK 09-749). To the north of this, a large flat grinding stone (GS 09-12) has been pedestaled in place. In the view looking west, the well-worn upper surface of this narrow stone can be seen. Visible in the southern corner of the west wall of the unit (upper left) in this photo is a flat iron disc (SF 09-159), embedded in the wall above a small stone. Further excavation showed that this disc was part of an object cluster that included a tri-looped iron bangle and interpreted as part of a shrine. Photo scales marked in 5 cm increments. Arrows pointing north. Site Ngre Kataa. 6 June 2009.
An insitu iron bangle (SF 09-132) made from a flattened iron rod with overlapping ends. The bangle occurred as an isolated find in the upper levels of an area (mound 6) that archaeologists interpret as a metallurgical workshop. Photo scales marked in 5 cm increments. Arrow pointing north. Site Ngre Kataa. 6 June 2009.
Insitu pottery and iron artifacts associated with clusters B and C of what archaeologists interpret as a shrine that capped stratified deposits in a metallurgical workshop. Cluster B encompassed the objects on the south (right) side of the photo, west of (below) the tree stump. To the right of the black-and-white photo stick (lower right) is an iron spike (SF 09-174), a half bangle (SF 09-173) and a slightly curved iron disc (SF 09-172) in a carefully placed composition. Immediately to the east (above in the photo), an aglomeration of pottery sherds is stacked. Later excavation revealed a pedestal-handled pottery lid, dog skull and jaw bones carefully placed below these sherds in cluster B. Cluster C encompassed the artifacts to the north (left) of the tree stump. These included a series of pottery lids, portions of single pottery jar and sherds from other pots. An iron bangle (SF 09-148) is visible above and slightly left of the top photo scale, sitting adjacent to a pottery lid (NK 09-381) lying with its interior surface up. This wider shrine assemblage overlaid burned features associated with metalworking activities. Black-and-white photo scale in 5 cm increments. Arrows pointing north. Site Ngre Kataa. 10 June 2009.
A cluster of burned features is exposed in the northwest corner of excavation unit 50N 8W in an area interpreted by archaeologists as a metallurgical workshop (mound 6). Along the unit's west wall (left in photo) is an amorphous zone of fire-hardened red (Munsell color 2.5YR 3/6) matrix. A piece of brass bar (SF NK 09-293) was found in soil associated with this burned feature. Above and to the right (northeast), two circular burned features are visible in outline. These basin-shaped features had a thin lining of fire-hardened sediment, red to dark red (Munsell 2.5 YR 3/6 & 4/8) in color. The basins were filled with loose ashy sediment and small pieces of charcoal. A sample of burned matrix from feature 1 (top right basin) yielded a thermoluminescence (TL) age estimate of 1500 +/- 40 CE (Univ. Wash. 2455). Further excavation revealed additional basin-shaped features beneath the amorphous burned feature. The excavation unit's northwest corner peg is visible, upper left. View looking north. Site Ngre Kataa. 27 June 2009.