The eastern portal, at Corsham, has a more modest brick face with rusticated stone.

The eastern portal remains open although is protected with a security fence.

Newly built next to the eastern portal of a tunnel entering to the gorge.

Scarlet rays stabbed out, flooding through the eastern portal.

The sidings led right up to the mouth of Box Tunnel, whose eastern portal is less than a mile from the station.

There was a sortie out from the eastern portal last night, according to the laborers.

Currently under construction is a connector between the tunnels' eastern portal and Highway 22.

Some say the eastern portal now faces west, and vice-versa.

It is located over the eastern portal of the Green Line tunnel.

Opened in 1849, its eastern portal is adjacent to Edge Hill station.