194 THE ESSEX NATURALIST. The Stort ford thus became a strategic point, a fact which is evidenced to this day by the remains of the pre-Norman castle standing on what was formerly an island. The Stane Street, for such is the Saxon name for the Roman road, has left its mark upon the parish boundaries here as it has done further east near Braintree. Leaving the valley and moving eastwards its depth and abruptness are emphasized. At times it is difficult to realise that the plateau level is interrupted at all, for the wooded parklands of Hertfordshire seem to rise immediately behind the well-tilled fields of Essex. A few roads do lead down to the riverside where, from the peaceful meadows, the steep sides of the valley can easily be seen. (The road to Little Hallingbury Mill is in a deep cutting between the fields.) The Stort valley, while it has facilitated easy communication with London, has also carried the traffic so successfully that it left the plateau country on both sides comparatively little developed. The Cambridge Road and the railway took the stream of life past, leaving the district in rural seclusion. Away to the eastward the country had strong links with the coast by the many streams of Chelmer drainage, while between lay undulating land, in which river units became the basis of life. The Roding has a surprisingly narrow basin considering its length, for the Chelmer and Lea have been stealing its drainage. Lacking large tributaries in its upper course the river remains little more than a brook for the greater part of the year. The floods which are experienced in the Woodford area are not due to the size of the river so much as to the absence of artificial regulation (a further sign of its insignificance as a water way, since it has not been thought desirable to entail the expenditure involved). At Leaden Roding, a good many miles from its source, the Roding is only a few feet wide and can be crossed by a simple wooden footbridge. The smallness of the river has resulted in a certain scenic monotony over much of its drainage area. This contrasts with the Pincey Brook country, which occupies the heart of the area under consideration. Pincey Brook waters have suffered much regulation ; instead of one stream there are usually two and sometimes three. By careful utilisation of the water it has been possible to provide excellent meadows for grazing and sufficient moisture for the fields even in the heat of summer.