Thupa; Sanskrit, stupa), that is, memorial mounds, standing on the level top of a small sandstone hill about 300 ft.
These chapadas and elevations, which are usually described as mountain ranges, are capped by horizontal strata of sandstone and show the original surface, which has been worn away by the rivers, leaving here and there broad flat-topped ridges between river basins and narrower ranges of hills between river courses.
Good sandstone is obtained from the Millstone Grit at Stancliffe, Tansley and Whatstandwell.
Albion is the centre of the Medina sandstone industry, and lies in the midst of a good farming region, of which it is the principal shipping point, especially for apples, cabbages and beans.
The blue-grey Chuckanut sandstone is quarried on the shore of Chuckanut Bay, south of Bellingham; and a coarse, dark-brown sandstone is quarried on Sucia Island, west of the city.
It is overlaid towards the west by similar limestones, which contain nummulites and belong to the Eocene period; and these are followed near the coast by the calcareous sandstone of Philistia, which is referred by Hull to the Upper Eocene.
At Redstone, the site of a former important ferry over the Severn, is a curious hermitage, excavated out of the red sandstone bank.
It is believed that the far-famed diamonds of Golconda actually came from the sandstone formation which extends across the south-east borders of the nizam's dominions into the Madras districts of Ganjam and Godavari.
The lowest group is on the horizon of the Calciferous Sandstone series, being visible at Corrie where it underlies the Corrie limestone, and is traceable southwards beyond Brodick.
No certain representative of the Dingle Beds has been traced elsewhere throughout the south of Ireland, where the Old Red Sandstone succeeds the uptilted Silurian strata with striking unconformity.