One of the primary things you want to identify in your scouting to hunt ptarmigan is a road, a road that will take you all the way to the top of some mountain pass. This saves you a climb that would just about ruin you before ever reaching the hunting grounds. Next, you want to find a reasonably long and level peak much like the one in the picture to the left. This gives you a greater opportunity to actually locate some birds by increasing the acreage you can walk on a single peak. Ptarmigan live in Colorado in relative large numbers. Given a little perseverance, and some time spent pouring over topo maps, they're actually easier to locate than most people think.
Quilomene bird hunting vest is the best for this kind of hunting. It can carry up to six liters of water plus it has a couple of water bottle pockets in the game bag for sports drinks, and it has loads of pockets for food, first aide and extra clothing. It's almost a backpack.
Image by stuant63 via Flickr