I’m really new to unity or game designing in general and I want to make a snowboard game. The problem is that I can’t tilt my terrain and i can’t make a perfect slope with the terrain tools either. So how can i make a slope for a snowboard game in unity 3d.
Thanks! 
One option is to build a general terrain in unity (since its so easy to use the terrain builder) and then for specific areas, bring in an external mesh (from something like maya) and make sure the textures match up, and just place it on the terrain where it needs to go.
Thank you very much for your answer!