Landscape-Texture-Green-Brown-Snow

I’m having great difficulty in assigning textures so they will show up on an object in the expected order from bottom to top. I would like to put the textures on a landscape generated with A.N.T. Landscape Generator. Since I’m not proficient at material nodes, I’d like to use the panels.
To acquaint myself with assigning multiple textures to one object, I made a cube. Assigned it a gray material. I then made 3 textures to fit from bottom to top on the cube. Textures were named brown, green, and snow. I used Blend as the type of texture. Later, I’ll change it to some cloud or fractal pattern, but for now I just need to learn how to assign the textures. For Map Input, I used Orco, FLat, no stencils, and left the X,Y, Z settings alone. . I left the Ofset and size settings at the defaults. For Map To, I used Col, assigned a color of brown for the first texture using the RGB values, and set the texture blending mode at Mix. I did the same for the green (assigned a RGB values to make it green) and snow (assigned RGB values to make it white) textures.
When I render it, the cube has colors of green to gray when moving from bottom of cube to top. The brown and white don’t show. I’m missing something elementary here, but I just don’t know what. Alpha is set at 1. I’ve tried modifying the offset and size values, but no success.
I’ve checked the wiki and the local help forums, but I can’t find solutions.
Would someone provide me a few starting elementary steps so I can work my way through this?

xxxxxxxxxxxxxxx

Tried it. No luck even after trying multiple textures.
So, I tried by making the material brown and using a green texture on top. The green texture was stucci. That seemed to be okay since I obtained a good transition between brown to green as one moves up in altitude.
I then tried a clouds texture for the snow as the last texture. I could not get the snow to display even after trying multiple offset values with multiple texture blending modes.
Looks like I have a few settings still out of order somewhere.
Advice?

you mean you want to Offset (hint hint) the textures at different dimensions from one another, perhaps in the Z (up) direction?

xxxxxxxxxxxxxx

http://www-users.cs.umn.edu/~mein/blender/plugins/texture.html

See the t_terrain texture plugin.

%<