New radiometric dates for precolumbian (2000–700 b.p.) earthworks in western Amazonia,Brazil

Abstract

In this paper we present new data on the precolumbian geometric ditched enclosures identified in Acre State, western Amazonia, Brazil. Remote sensing and ground survey have revealed 281 earthworks, located mainly on the edges of high plateaus overlooking the river valleys drained by the southeastern tributaries of the Upper Purus River. Excavations have shown that the few existing cultural materials are concentrated on the slopes and in the bottoms of the ditches, as well as on small mounds that were likely remains of houses, whereas the central, flat enclosed areas lack major archaeological features. New radiocarbon dates place the initial stage of earthwork construction as early as ca. 2000 b.p. We suggest that the building of these geometric earthworks may have been a regionally shared phenomenon, especially among the Arawak and the Tacana peoples, who used them for special gatherings, religious activities, and, in some cases, as village sites.     

MAPPING NEVER-NEVER LAND: AN EXAMINATION OF PINSON MOUNDS CARTOGRAPHY

Abstract

The well-known map of the Pinson Mounds site published by William Myer in 1922 illustrates numerous earthworks, including 34 mounds and extensive embankments, most of which are not visible today. Researchers have long debated the existence of these features and the accuracy of Myer’s map in general. Using early photographs, topographic maps, gradiometry, and, most important, the 1917 field map upon which the 1922 map was based, it is clear that a number of the mapped features were not visible to Myer and were simply products of his imagination. Furthermore, we provide strong evidence that the Inner Citadel embankment and several associated mounds never existed.     

The Excavation of a Brick Clamp at Shotesham St. Mary,Norfolk, 1969

Abstract

Rescue excavations in the small village of Llanmaes investigated an area of earthworks indicating the presence of several buildings. Medieval evidence was largely confined to finds. Three late 17th-century properties were examined; it is possible that they represent a planned development on the east side of the village green in response to population expansion in the Vale of Glamorgan. The buildings are of simple two-roomed plan, and would appear to be tenements of low status. One of the buildings produced evidence of smithying. A large group of metal finds of agricultural and domestic use was found, as was a closely-dated assemblage of wine bottles; a large midden deposit on the north edge of the site contained a very large group of post-medieval pottery. The buildings were abandoned by the end of the 18th century, presumably following rationalization of the local settlement morphology and farming. Thus the site represents a short-lived expansion in low-status rural housing at the time of the ‘Great Rebuilding’.     

Natural degradation of earthworks,trenches, walls and moats,Northern Thailand

We here investigate the geometry, age, and history of several enigmatic northern Thailand earthwork entrenchments that are mostly located on hills and could not have held water to form moats. The earthworks are either oval or rectangular in plan view and typically encircle 0.3 to 1?sq km areas with no potsherd debris that would indicate former towns. Most trenches are 3–5?m deep with inner walls 4.5–8?m high. Some encircling earthworks are concentric double trenches spaced approximately 10?m apart. Historians have suggested these earthworks enclosed defensible areas where people in outlying villages sought refuge when under attack by neighboring rulers, the Chinese Ho, or the Burmese. We argue that some encircling entrenchments may have been for the capture or containment of elephants. Nearly all of the once near-vertical original walls have degraded to slopes of 32–47°. Fitting calculated curves of the diffusion-based scarp-degradation model to our height-slope data, and assuming most scarps have degraded since the end of La Na Kingdom time a.d. 1558, we derive a diffusion coefficient of 0.002?m² y^?1. Slopes of the rectangular earthwork at Souvannkhomkham, Laos, across the Mekong River from Chiang Saen Noi, are significantly more degraded (approximately 32°), indicating an age of 800–1200 years. Locations of these earthworks are established in hope that they will be preserved as part of the Thai and Lao archaeological legacy.     

A Statistical Study of Lunar Alignments at the Newark Earthworks

Abstract

Previous work has presented evidence that the Circle-Octagon Earthworks at Newark Ohio contain numerous features that are aligned to the lunar standstills (extreme rise and set points of the Moon). A Monte Carlo study of randomly constructed octagons is presented to investigate the statistical significance of this evidence. The study investigates the sensitivity of the statistics to a variety of plausible assumptions about the design of the earthworks, the capabilities of the builders, and the type and precision of the astronomical alignments. The results of the quantitative study establish that the statistical significance of the evidence for deliberate astronomical alignment over the entire range of plausible assumptions is far too high to be dismissed. The study reveals that the hypothesis of deliberate astronomical alignment predicts the otherwise unexplained shape of both octagonal earthworks constructed by the Hopewell Culture. The analysis compares the Newark dataset to hypothetical datasets which have no statistical significance, so that the difference is clearly established. We also show the evidence is consistent with the hypothesis that the astronomical alignments were established from observations made from high points where the effects of local horizons were negligible.     

A Note from the Editor

Abstract

This paper presents results of research conducted during the summer of 2006 at the South Flats Earthwork (20MU2) along the Muskegon River in western Michigan. The site was first identified and excavated by George Irving Quimby in the 1930s. Our objectives included assessing the condition of the earthwork, systematically testing the area both within and outside the earthwork, developing data on earthwork construction, and considering alternative hypotheses for understanding the function of this earthwork in the context of recent discussions of earthworks in Michigan and the Midwest.     

Middle Bronze Age Ramparts: Functional and Symbolic Structures

Abstract

The Middle Bronze Age is a period of urban rebirth, with one of its hallmarks being massive earthworks surrounding cities. These structures have been studied extensively, with traditional interpretations of their function revolving around defensive aspects. However several scholars have called into question the validity of these interpretations, offering alternative explanations revolving around more “social” reasons. The present paper suggests that while the structures were constructed for protecting the city and its inhabitants, this only strengthens its “social” symbolism. Of major importance to its symbolism is the effect the ramparts had on the landscape, altering it permanently, and giving an impression of controlling the landscape.     

Twenty-First Annual Meeting,Ipswich

Abstract

Lodge Farm is a stone first-floor hall house of the early fifteenth century built for Henry V or VI. Documentary sources suggest that it was the residence of the head park keeper, warrener and forester of Kingston Lacy manor.

Refurbishment of the building in 1986–9 was accompanied by a full archaeological and photographic survey. Archaeological excavation, in advance of underpinning, revealed archaeological features below the foundations. Ditches and post-holes contained pottery dating to the Early Iron Age. Two lengths of ditch, separated by a causeway, are interpreted as part of a deer park boundary. The fillings of the deer-park ditches contained building debris of thirteenth- to fifteenth-century-date, probably from an earlier lodge. A dump of fallow deer antlers within the north ditch filling was dated by radiocarbon analysis to A.D. 1325–1415 A.D. at I sigma.

A study of documentary sources shows Lodge Farm to be an important building within the hunting land of the medieval manor of Kingston Lacy which, in the sixteenth to eighteenth centuries, was associated with rabbit farming.     

A TOWN AT THE CROSSROADS: SITE-WIDE GRADIOMETRY SURVEYING AND MAPPING AT OLD TOWN RIDGE SITE (3CG41) IN NORTHEASTERN ARKANSAS

Abstract

Gradiometry survey at the Old Town Ridge (3CG41) site, a stockaded Middle Mississippian period town in the central Mississippi River Valley of Arkansas, demonstrates the efficacy of a broad-coverage, site-encompassing remote sensing methodology for initial interpretation of intrasite organization and complexity. Site access, time constraints, deep plow furrows, and cotton plant “stubble” associated with ongoing agriculture at the site defer the efficient use of a site-wide multisensor prospection methodology. However, a gradiometry survey identified multiple anomalies consistent with prehistoric structures, earthworks, earthquake liquefaction, and other interpreted features encompassed within the remains of a 7-ha, rectangular enclosure. Aerial photography, topography, and preliminary archaeological ground truthing provided additional information for analysis and interpretation.     

A sugar-boiling house at Galways: An Irish sugar plantation in Montserrat,West Indies

Abstract

The former village of Cowlam lies on the Chalk Wolds of the old East Riding of Yorkshire at SE/965657. When the village earthworks were threatened with destruction in the early 1970s, the late T.C.M. Brewster carried out a series of rescue excavations for the East Riding Archaeological Research Committee. He examined the remains of four structures within the ‘courtyard farm’ complex of one croft. His excavations demonstrated that this courtyard farm represented the amalgamation of two earlier croft units, probably at some time towards the end of the medieval period.

Three of these four structures had ground plans of typical ‘longhouse’ form, with dwarf chalk footing walls and opposed central doorways. Their similarity of form raised problems of their respective functions and the changing role of buildings within the complex. The wide range of artefact material recovered from the vicinity of these buildings provided additional evidence for their use.

The pottery demonstrated that this courtyard farm had remained in occupation until the later 17th century, a date which correlated with the documentary evidence for the desertion of the village. Cowlam is only one of a number of Wold villages which were abandoned in the post-medieval period.     

Survivorship of Earthworks Mapped by T. H. Lewis in Iowa 1884–1894

ABSTRACT

Between 1884 and 1894, Theodore Hayes Lewis mapped 370 prehistoric American Indian mounds and earthworks in Iowa as part of a larger survey of mounds in the upper Midwest. Georeferencing remapped Lewis survey notes allows their comparison with modern GIS data including lidar topographic maps, aerial photos, and land records. Of the 370 mounds, 190 (51.4%) are clearly visible in lidar, 160 (43.2%) are probably destroyed, and 20 (5.4%) are undetermined. Data analyses explore the factors that influenced mound survivorship. By far the strongest correlations for survivorship are modern land use, modern ownership, and local landform, with mounds most likely to survive in wooded areas, on public land, and on islands. Iowa data are compared with Lewis map data from Minnesota, revealing Iowa has a far higher survivorship, 51.4% versus 25.6%, likely attributable to land use in the late nineteenth century. Further comparison with Minnesota data suggests perhaps twice as many mounds stood in modern agricultural fields of Iowa before Lewis made his surveys.     

The History and Charters of Ingulfus Considered

The current Bronze Age settlement model for the middle and upper Great Ouse valley is based on the distribution of ring ditches from aerial photography, their excavation and the occurrence of stray finds. This settlement study, which is part of a broader survey programme, has initially concentrated on obtaining flint distribution patterns by field walking to see in what ways these could amplify and perhaps solve the problems posed by present evidence. It was also intended to assess its value as a tool for problem solving in the context of landscape archaeology and settlement studies. Although the areas examined were small and selective, the flint distribution patterns, when considered with other evidence suggested that ring ditches were part of complex and extensive settlement locations. However it was evident that the ring ditches were set away from the main habitation foci.     

Feasting at Poverty Point with Poverty Point Objects

ABSTRACT

Attempts to account for the impressive and unusual archaeological record of the World Heritage site of Poverty Point have often faltered. The vast and diverse set of artifacts, the spectacular and well-designed earthworks, and the millions of baked-clay objects known as Poverty Point Objects are all distinctive and anomalous features of the site. This paper argues that the archaeological record of Poverty Point can best be explained as the product of periodic, ritualized feasting events. Drawing on diverse archaeological and anthropological studies of feasting I demonstrate that it is a useful research framework for understanding the site’s content because many of the archaeological signatures of feasting are present at Poverty Point. I argue furthermore that Poverty Point Objects were an integral component of this culture of feasting and offer hypotheses on their role in the feasts.     

A New and Extended Case for Lunar (and Solar) Astronomy at the Newark Earthworks

Abstract

The Middle Woodland period Newark Earthworks in Newark, Ohio, are the largest known set of connected, geometrical earthworks ever constructed. An analysis of available evidence (survey, topographical, statistical, and archaeological) shows that the geometry of this Hopewell complex and its relation to the surrounding terrain can be understood in terms of astronomical alignments to the Sun and Moon. The geometrical structure of the site is consistently aligned with extremes in the 18.6-year cycle of lunar standstills. An understanding of the topographical context is presented by identifying four hilltops connected by lunar standstill alignments to long linear features of the Earthworks and connected to each other by alignments to the Sun at the solstices. The number and accuracy of the alignments together with Monte Carlo studies showing the low likelihood of chance producing such results suggest that Newark was aligned with unprecedented accuracy both to regional topographical features and astronomical phenomena.     

Landscapes of the Battle of the Bulge: WW2 Field Fortifications in the Ardennes Forests of Belgium

Abstract

This paper presents the results of a reconnaissance survey of battlefield archaeological features that are associated with the early stages of the German Ardennes offensive in December 1944, and which have been well-preserved in the post-war forests in the St. Vith–Schöenberg area of eastern Belgium. Field survey of the location, plan-form dimensions, (unexcavated) surface relief and orientation of forest-floor earthworks over a total area of ca. 1.4 km² has recorded 116 discrete and well preserved features that have been provisionally assigned to a threefold typology encompassing large emplacements, rectilinear entrenchments and circular and sub-circular entrenchments/shell craters. The form and disposition of these remains are considered in the context of field fortification doctrine, documented accounts of combat in the area and the terrain and landscape setting. It is to be hoped that the work will stimulate a wider awareness of the value of recording and managing the region's WW2 battlefield heritage in the face of future development pressures, and especially the immediate threat posed by mechanised forestry operations.     

RECALCULATING MOUND VOLUME AT MOUNDVILLE

Abstract

Volume is a critical measure in quantifying differences among earthen mounds. Previous methods for measuring mound volume are prone to error by oversimplifying the symmetry of earthworks. However, the wide availability of contouring software has made it simpler to calculate volume. The results obtained using a computerized technique referred to as the gridding method are compared with previous mound volume estimates at Moundville. The outcome shows that volumes calculated using the gridding method are much smaller than the original estimates. Inflation of the volume of earthen mounds may lead to misrepresentations regarding the degree of sociopolitical organization that existed at Moundville and at other prehistoric mound-building societies in the southeastern United States.     

Diversity of cultivars and other plant resources used at habitation sites in the Llanos de Mojos, Beni, Bolivia: evidence from macrobotanical remains, starch grains, and phytoliths

Although sparsely populated today, the Llanos de Mojos, Bolivia, sustained large sedentary societies in the Late Holocene (ca. 500 to 1400 AD). In order to gain insight into the subsistence of these people, we undertook macrobotanical and phytolith analyses of sediment samples, and starch grain and phytolith analyses of artifact residues, from four large habitation sites within this region. Macrobotanical remains show the presence of maize (Zea mays), squash (Cucurbita sp.), peanut (Arachis hypogaea), cotton (Gossypium sp.), and palm fruits (Arecaceae). Microbotanical results confirm the widespread use of maize at all sites, along with manioc (Manihot esculenta), squash, and yam (Dioscorea sp.). These integrated results present the first comprehensive archaeobotanical evidence of the diversity of plants cultivated, processed, and consumed, by the pre-Hispanic inhabitants of the Amazonian lowlands of Bolivia.     

Raised fields in the Bolivian Amazonia: a prehistoric green revolution or a flood risk mitigation strategy?

The Llanos de Moxos (LM), Beni, Bolivia, with its impressive number of pre-Columbian earthworks, is an ideal region for studying past human–environment interactions in the Amazonia. Agricultural raised fields are among the most striking of those earthworks. They can offer us valuable information about the region’s agricultural carrying capacity and the nature and extent of human occupation in pre-Columbian times and, therefore, help adopt better informed conservation and development strategies for Amazonia in the future. However, before tackling these issues we need to further our understanding of why pre-Columbian raised fields were built and how they were managed in the past. Published data on raised fields in the LM is contrasted with new data gathered from field and remote sensing images. Raised fields have been analysed in relation to the hydrology, soil, topography and paleoclimate of the areas where they are found. In light of this new data we believe that there are grounds to question the current model that suggests raised field agriculture provided high yields without the need of fallow periods, representing a kind of pre-Columbian green revolution. Our alternative proposal suggests that raised field agriculture allowed pre-Columbian peoples to mitigate the risk of more intense and frequent flooding than is experienced today in the LM. We show that raised fields were built only in those areas where there were no alternatives, which do not coincide with those areas where pre-Columbian societies seem to have flourished and reached high levels of social complexity.     

Illustrations of Medieval Manners,Chivalry, and Costume,from Original Documents

In 1994 investigations comprising geophysical and earthwork surveys, together with evaluation excavations were carried out at Hylton Castle, Sunderland. The results confirmed the former presence of buildings east of the gatehouse tower, and contemporary with it. Some evidence for a hitherto unknown sixteenth- or seventeenth- century successor to the castle was discovered on an artificial terrace overlooking the earthworks of an ornamental garden with associated water features.