Cave Research Foundation
The Cave Research Foundation (CRF)coordinates research efforts and expeditions. California based CRF projects work with the Sequoia and Kings Canyon Cave Management and Lava Beds Research Center. The CRF West trip calendar is available here.
Derek Bristol Resources
Caving YouTuber, Derek Bristol, offers very comprehensive video tutorials on cave survey, cave cartography, cave rigging, and domestic and international caving projects.
Sketching and Surveying 101
Created in 2000. Cave survey technologies have advanced, but the general principles are the same and the info for sketching is still highly pertinent.
Cave Bolting and Climbing Issues
COMPASS Software
COMPASS is a cave mapping software package designed to edit, process, analyze and view cave survey data using any Windows-based computer. The programs in the system allow you to enter cave data, revise the data, generate statistics on the cave, close loops, view plots from any angle and finally, print finished quality plots on almost any printer or plotter.