The Chalklands are conspicuous in the landscape of the south-central and south-eastern England GCR region, especially the prominent escarpments of the North and South Downs and the extensive upland of Salisbury Plain. One of the most obvious features of Chalk landscape is the dense distribution of dry valleys which characterise both its dip and scarp slopes. Two groups of dry-valley sites are considered here, a morphology group (Bratton, Devil’s Dyke, and Rake Bottom), and a group noted for its sediments (Asham Quarry, Cow Gap, Devil’s Kneadingtrough, Holywell Coombe and Upper Halling). The morphology of the valleys considered in the first group, is spectacular. Each of these GCR sites is apparently associated with river capture. They display a complex morphology involving breaks of slope, sharply angular courses and, apparently, entrenched springs. Devil’s Dyke and Rake Bottom possess generally smooth slopes in contrast to the Bratton site where the slopes are incised by a wide range of channels. The formation of these valleys has attracted considerable controversy, mainly concerning the degree to which periglacial conditions, rather than ‘normal’, temperate fluvial conditions, are involved. The second group of Chalkland GCR sites is associated with relatively simple valleys or embayments in which natural or artificial exposures have revealed complex sediments that provided detailed environmental information, mainly from molluscan remains, but also from pollen and coleoptera in the case of the spectacular Holywell Coombe. Human artefacts were retrieved from Cow Gap, Devil’s Kneadingtrough and Holywell Coombe. At each site except perhaps Upper Halling where the record may extend back to the Mid-Devensian, the period represented by the sediments is late Devensian to Holocene time, according to conventional and AMS radiocarbon dating.

在英格兰GCR中南部和东南部地区，尤其是北部和南部丘陵的突出悬崖以及索尔兹伯里平原的广阔山地，丘克兰地区尤其引人注目。粉笔景观的最明显特征之一是干燥山谷的密集分布，这是其倾斜和陡坡的特征。这里考虑了两组干谷地，一个形态学组（布雷顿河，魔鬼堤防和耙底河谷），另一个是因沉积物而闻名的组（阿沙姆采石场，牛峡，魔鬼的捏合槽，霍利韦尔库姆和上层大厅）。第一组中所考虑的山谷形态十分壮观。这些GCR站点中的每一个显然都与河流捕获有关。它们显示出复杂的形态，包括坡度折断，陡峭的角度变化，显然，根深蒂固的温泉。魔鬼的堤坝和耙状底部通常具有光滑的坡度，而布雷顿地区的坡度则由各种渠道切开。这些山谷的形成引起了相当大的争议，主要是涉及冰川条件而不是“正常”温带河流条件的程度。第二组Chalkland GCR站点与相对简单的山谷或河床相关，在自然或人工暴露下，它们发现了复杂的沉积物，这些沉积物提供了详细的环境信息，主要来自软体动物遗骸，而壮观的霍利韦尔库姆也来自花粉和鞘翅目。 。从牛峡，魔鬼的捏合槽和霍利韦尔库姆检索到了人工制品。