sources of contour lines

[Westspin]

Hi I am looking to model a building on an island but the current GE terrain data has the island as see level and not raised roughly the 40 foot up it really is.  If I build the building now it won't sit right compared to the surrounding area.  I know it is possible to import contour lines to build up terrain but I want to know are there any publicly available sources which may be more acurate?  It's for a place in the UK if that makes a difference,

Thank you

Andy

[SnowTiger]

Why not use SketchUp's "Sandbox Tools" and model that terrain yourself ?

The overall size/area of the island and the accuracy of detail you need, will determine the time necessary to model it as well as the resulting file size.

[Keshan Perera]

Here!  http://www.arch.virginia.edu/computing/training/online/faculty/stiles/pages/sketchup%20new/sketchup%207_sandbox%20tools.html  Hope this helps!