On Thu, 12 Oct 2006 02:37:53 +0000, John Godwin wrote:

Over any congested area of a city, town, or settlement, or over any
open air assembly of persons, an altitude of 1,000 feet above the
highest obstacle within a horizontal radius of 2,000 feet of the
aircraft.

I've long wondered about whether "congested area" applies when one is over
a river. That's not congested. It is next to a congested area, but it
itself is rather sparsely populated.

- Andrew