At approx. 11:07 AM, a roof fall above the anchorage was discovered on the North A belt line. The fall was approx 30'long x 17.5' wide & 6' high. This area had been mined in Oct. of 2005 & was supported with 6'fully grouted bolts. There were no injuries due to this accident. The area was re-supported and then cleaned up. Weathering may have been a factor causing this roof fall.