If in doubt, include more detail rather than less. Each area is defined by the boundary of one or more river basins. If in any doubt, consult an on-line map , then click Back in your browser to return to this page. Where a quotation refers to more than one river basin, select the one most relevant to the quotation. Your email address Please add your email address which will be helpful for verification or in the case of a subsequent user wishing to contact you.
Further references Give details of any further reference works which provide relvant further detail.
Relevant website Use this field to identify the URL of any relevant web site which may be of interest to Chronology users. Additional years are being added all the time. If any user of this chronology cares to search those volumes for hydrological facts, the BHS will be delighted to have extracts added here.