With my hunting spot in CO I try not to use any lights at all unless I need to, but it is also about 10 minutes from where I park to where I start to hunt (I like to go after the game other people overlook and walk right past). Then I just stand at the edge of where I want to begin, and listen, while waiting for hunting light. Normally enough light out that I can generally see what I need on the way in, dark adaptation takes 30-45 minutes at first, then if you do turn on a light, can take anywhere from 5-45 minutes to get it back depending on intensity and duration. If I do use a light, I prefer red.
