Topo to Raster (interpolation problem with lakes and streams)

[LukaszSzyling]

Hello,

I'am trying to create DEM from contour line, lakes and streams, but it is impossible.
When I add contour line and execute interpolation everything is all right, but when I add lakes (as polygon) and choose type (as lake) then field with value dissapear.
What is interesting, I can choose field with value to interpolate when I'am choosing for example point elavation or streams, but it has diffrent type.

Anyone knows why I can't choose field with value to inerpolate ?
Layer 'lakes" is polygon as require feature input.

(I am sorry for my english)

[ATTACH=CONFIG]33731[/ATTACH]

[NeilAyres]

The lakes and streams data do not need an attribute.
The stream are supposed to be all digitized pointing downstream for drainage enforcement. The lake polygon boundaries adopt the minimum elevation value of the data surrounding them.
See here :
http://resources.arcgis.com/en/help/main/10.2/index.html#//009z0000006s000000
Good luck,
Neil

[LukaszSzyling]

Hi,

Thank You for answer. I made DEM using Topo to Raster.

Greetings,