BLM

Tousands of dangerous and deteriorating mine shafts scattered across California, Arizona and Nevada contain unhealthy levels of arsenic, lead and mercury, according to a report from the Department of Interior inspector general.

Inspectors said they visited about 45 federal parks and conservation areas with abandoned mines between March 2007 and April 2008 and found the lands to have "dangerous physical safety and serious environmental hazards."

The lack of a domestic oil-shale industry makes it purely a speculative endeavor to project the development of the technology necessary to extract oil-shale, the future demand for oil-shale leases, and the costs of developing those resources.

Squeaky wheels get the grease!!