Thanks, both Sheson and Zilav, for your responses. I seem to have gotten the tundra trees working, and they look great. In fact, LOD in general looks great, and walking around Skyrim is more astonishing that I imagined it could be. Thanks for DynDOLOD. There's only one issue (maybe two) that I've run into. Now, if I am reading you correctly, this picture is an example of the child/parent world issue that you described. You said that "The workaround is to give those trees enable parents, with mesh rules for example, or give them to static LOD with setting their references to "Billboard" in LOD4/8/16." I think I follow this, but is there a tutorial or reference that would help me through the process? I'm happy to learn. This tree is just inside Windhelm. When I approach Windhelm in game, the LOD lingers far too long--I can still see LOD of its facade when I'm standing on the bridge directly in front of the gates, but it eventually does go away if I get really, really close to it. But one section of wall directly on the other side of that stuck LOD tree but in the Tamriel worldspace stays stuck. Any advice on how to troubleshoot it? I'm only running one mod that changes Windhelm, Snow City, and I've never had issues with it before. Thanks again.