What is the BCRA?

The British Cave Research Association is a UK-registered charity and constituent body of the British Caving Association. The association aims to support cave and karst research, encourage original exploration, publish speleological information, and organize educational and scientific conferences.

For more information, visit the official BCRA website.

The Grading System

The BCRA Survey Grade system is a two-part classification system that assigns individual ratings to both the line survey and cave passage details; Numbers represent the line survey and letters represent the passage details.

The image below is a table of the BCRA Survey Grades created by Survey Down. Please note the grading format shown at the bottom of the table.

More Information

The official BCRA Survey Grades outline can be found on the BCRA Cave Surveying page here.