. A regional geography of the world, with diagrams and entirely new maps . hames and its capture ancl deflection-to the Bristol Channel by the Warwick Avon and thelower Severn. The upper basin of the Severn lies between the sourceand the gorge where the river passes between theWrckin, an isolated volcanic mountain nearly 1,350feet in elevation, and Wcnlock Edge, an outlier of theSouth Shropshire Hills. It is very probable that theupper Severn emerged from the Welsh highlands to aplain which formerly stood at the level of the tops ofthe Wrckin and Wenlock Edge, and that the gorgealready mention
. A regional geography of the world, with diagrams and entirely new maps . hames and its capture ancl deflection-to the Bristol Channel by the Warwick Avon and thelower Severn. The upper basin of the Severn lies between the sourceand the gorge where the river passes between theWrckin, an isolated volcanic mountain nearly 1,350feet in elevation, and Wcnlock Edge, an outlier of theSouth Shropshire Hills. It is very probable that theupper Severn emerged from the Welsh highlands to aplain which formerly stood at the level of the tops ofthe Wrckin and Wenlock Edge, and that the gorgealready mentioned has been produced by the loweringof the plain to its present level. Between the Cheshire Plain and the English Mid-lands the plain is narrowest where the Severn makesits great bend, where the South Shropshire Hills,outliers of the Welsh Mountains, come closest to the WICLSII l^ORDER AND SEVERN JiASIN 113 l*ennincs. This comparatively narrow ^ap is known asthe Midland Gate (see Fig. 33). Slireivsbury, the mostim])ortant town on the upper Severn, had its origin in. :T^ tub MAPPA LONUOii. Fig. 33.—Sketch Map of the Welsh Borderlands and the Severn Basin. an old British stronghold built on a sandstone rockaround which the Severn makes a loop. It stands atthe junction of Watling Street,- the Roman road fromLondon to Chester, and another Roman road traversingthe hill country to Hereford in the south. Later roads1 114 THE BRITISH ISLES converged upon the city from the upper basin of theThames, from Birmingham and from Crewe, whilst inmodern times all these routes are followed by importantrailways. , The Severn valley does not open out into the broadplains of its middle course until it leaves Bewdley, northof the confluence of the Stour. In the narrow valleybetween the Plain of Shrewsbury and the middle basin(note how close the 300 feet contour approaches toboth banks of the river) there are several small miningand industrial centres. Coalbrookdale has a small coal
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectgeography, bookyear19
