One of the most challenging and often frustrating parts of landscape photography is that you do not get any control over the light. While you can do your best to predict the conditions, nature will not always cooperate. So, can you create good photos in boring light? Absolutely, and this great video will show you some of what you can accomplish and how to go about it.
Coming to you from Andrew Marr, this excellent video discusses the process of creating compelling landscape photos in bad light. I think one of the most important aspects of learning to create worthwhile images in less-than-stellar light is being willing to work with what the light is conducive to rather than trying to work against it. While it is good to preconceive the shots you would like to take, being willing to be flexible and willing to adjust if needed will not only lead to better images when things don't go well, it will also make for a more enjoyable experience. Check out the video above for the full rundown from Marr.
And if you really want to dive into landscape photography, check out "Photographing The World 1: Landscape Photography and Post-Processing with Elia Locardi."
Goodness, I've been in some rough conditions shooting but have that many flies swarm around my face would be super annoying. I wonder if a small battery fan would be enough to keep them off your face?