I think that Rivendell should not be so accessible as it is currently (terrain wise mostly). for starters I do not believe that the ford of bruinen is 30 feet from the hidden valley,and that it should be moved farther west a bit, and the mods version of the hidden valley is not so hidden. I think that Rivendell should have more hilly and rocky terrain around the front to hide it better and so building a winding path through the mountains to the valley is more do-able. Also I do not think that imladris is a valley in between some mountains that are in the middle of a flat area, it is a small valley in the middle of a large mountain range (I understand that the valley had to be larger for various purposes). I think that the terrain should be less hospitable as it is described in the books and displayed in the movies. And last of all I would think it to be more rewarding to struggle though inhospitable mountain passes and come to a "homely house" in a truely hidden valley than to swim a small river with no trouble and enter a rich valley with various goods for the taking. for this reason I think that the Rivendell biome should be hidden until found such as you have done with the legendary Meneltarma. I hope you agree with me and fix it next update! Thanks for your consideration!