There have been tens of thousands of pages of documents sifted through and chewed over in the various investigations of the Crandall Canyon coal mine collapse a year ago.

With the recent release of the Mine Safety and Health Administration's accident investigations, and the Labor Department's internal review, and the anniversary of the collapse, it might be interesting looking once again to some of the primary documents at the heart of the disaster.

MSHA has provided a fairly complete set of records, including a handful of the documents The Tribune relied on when it was breaking stories in the days immediately following the collapse. Check out the link here:

Crandall Canyon docs.

-- rg