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
This file pairs a mapped waterway with its place in the fiction. Use the river explorer to trace the real geography, then follow the book guide for the story context and listening route.
First met in
Explore the story connection in Rivers of London, including its book and audio guide.
Related and sources
Explore on the river map → · Geographical reference ↗
The river map separates real geography from the fictional river families.
Later in the series · possible spoilers
Effra. Historical branches and today’s drainage do not necessarily follow one continuous course.