Giving the landscape/terrain it's relief in order to 3Dprint

[vanwolleghempiet]

Dear community

I'm a fusion360 user but I've be 'instructed' to try out meshmixer for my problem but since I'm an absolute beginner I have no idea where to start. The problem I face: I have this file of a section of a landscape that I'd like to 3D print. However, this is a very thin dwg/dxf export (managed to convert it to stl) and I'd like to make it thicker while respecting the relief of course. I would like to achieve something like the image below:

Can someone please help/assist me in doing this? I have multiple other landscapes to 'convert'.

Thanks

[vanwolleghempiet · Accepted solution]

Nevermind, found it myself (think I reached out for help too soon).

Fix: extrude along Y axis with flat EndType.