Open World Tools Tips & Tricks | Unreal Engine Documentation
ArtStation - Creating Landscapes in Unreal Engine 4, by using LiDAR Point Cloud Data, Dennis Öztürk
My 2nd scene ever in Unreal Engine! Having tons of fun learning and building levels. Easy to get into but super hard to master. Made entirely from free (at least currently) assets. :
Creating a quick Unreal Engine 4 Mountain environment - YouTube