Sources & Methodology

Data Collection Process

The data presented on CaverBob.org is collected through a rigorous process that ensures accuracy and reliability. Our rankings are based on verified measurements and reports from speleological organizations, research papers, and trusted sources within the caving community.

Verification Standards

For a cave to be included in our rankings, we require:

  • Documented survey data with clear methodology
  • Verification by recognized speleological organizations when possible
  • Cross-referencing with multiple sources when available
  • Clear documentation of measurement techniques and standards

Primary Sources

Our database builds upon the foundational work of Robert Gulden, with additional sources including:

  • International Union of Speleology (UIS) publications
  • National speleological society reports
  • Peer-reviewed research papers
  • Expedition reports from recognized caving organizations