Lost or historical waterway
Effra
A lost south London river. Only a short mapped outfall section is available here; the historical course is not traced.
South London towards Vauxhall
First met in
Selected book connection: Rivers of London. This is a selective index, not a verified first appearance.
Related and sources
Explore on the river map → · Geographical reference ↗
Fictional relationships and real geography are recorded separately. The map explains the limits of its waterway data.
Later in the series · possible spoilers
Effra. Historical branches and today’s drainage do not necessarily follow one continuous course.