Ideas for Making Rivers

This one uses 1/8" thick heavy duty vinyl tiles to make my rivers > http://wargamesandstuff.blogspot.com/2010/02/making-rivers.html

Excellent idea, machine cut ends and exactly 12" long - the sky's the limit.

Also use 00 gauge bridges, you should be able to find old type bridges or even new ones depending on time period.
http://www.igg.org.uk/gansg/00-wargame/river.htm

Gaming Terrain

Having a permanent table top for gaming is always a problem, if you have a mat and use the GW modular terrain it could be the best solution. All of it is robust and can be put away.

Gaming Table or Not

If you don't have permanent space for a gaming table then the Terrain Mat is a great option.

Options are available for roads/rivers and different base colours also available. A green mat with 10-15% brown 3ftx5ft is £28.35. It can be rolled up and brought out and should fit on a standard size dining table. You could also add Games Workshop hills and woods for extra effect.

http://terrainmat.com/