ASPEN, Colo. (AP) -- Cracks in the snow at Aspen Mountain forced Aspen Skiing Co. to limit terrain on the mountain over avalanche concerns on Sunday.

Officials found extensive snow fracturing along the top of Bell Mountain, and a slide was visible underneath Ajax Express, which had opened for the first time this season.

The Colorado Avalanche Information Center said Monday the avalanche danger for the Aspen area is considerable for slopes facing north through southeast above tree line and for all slopes facing northwest through east near and below tree line.

According to the Aspen Daily News, skiing on the top of Ajax was limited Sunday while the patrol tried to eliminate avalanche danger on steep slopes.