I’m looking to add to my knowledge of how deer move down as the weather changes and how it might influence the strategies for 2nd, 3rd, or 4th Rifle. Assuming Colorado and in an area with mountains to ~12k and valleys at about 8k. Some deer stay down year round. For those deer that are up high, they will remain so through Sept. At some point they will start down. Is this due to snow, or cold temps and it’s impact on food? At what time are Muley’s nearly always down to their winter range?