Development was concentrated near the waterfront until the 1960s and 1970s.
Most of the people are concentrated in the south, along or near the railway.
The explosions seemed to be concentrated near the center of the village now.
They had to concentrate their efforts near the scattered population centers.
Older homes tend to be concentrated near the train station.
To the east of Main commercial development continued, with the hat factories concentrated in the north, near the river.
Generally, though, ivory seems to have been concentrated in and near the temples.
Those forces are concentrated near the port city of Aden.
Most search programs concentrate their efforts near the opposition region where it is difficult if not impossible to find these objects.
Since then we've concentrated our search near the second artifact, with no success.