One feature of the 1996 expansion was the addition of over 10,000 seats in the upper deck that now spans the outfield in the baseball configuration. The effect of these new stands, comprising sections 335–355, was to completely enclose the stadium, eliminating the view of the Oakland hills that had been the stadium's backdrop for 30 years.
The stands are very narrow and steeply pitched, bringing the back row of its uppermost tier to a height rarely seen in modern stadiums. Due to the stands' height and the loss of the Oakland hills view, A's fans have derisively nicknamed the structure "Mount Davis" or "the AL-ps," in mockery of late Raiders owner Al Davis.
It has been criticized as an area which has made the O.co Coliseum look ever more like a football stadium, and not at all one for baseball. From 1997 through 2004, the A's left the section open, but it was rarely filled except for fireworks nights and the postseason. The A's did not count the area in the listed capacity for baseball; hence, even though the "official" baseball capacity was 43,662 (48,219 with standing room), the "actual" capacity was 55,945 (approximately 60,000 with standing room).