Cowboy Coffee: How to make coffee without a filter

I always wondered how the cowboys in the old west made their coffee. I'm sure they didn't bother with filters or something as fancy as a French press.

On my first overnight pack trip at Rock Creek Pack Station, I learned the trick. 

Here is what you need:

• A heat source
• A metal kettle or pitcher
• Coffee grounds
• Water
• A small cup

Directions:

1. Fill the kettle 3/4 full of water and put it on your heat source to boil 
2. Fill the small cup with the coldest water you have 
3. Once the kettle water is boiling, slowly add the coffee grounds. Be careful because adding coffee grounds can make your kettle boil over. If it looks like it is about to, pull it off the heat for a second or two 
4. Boil the coffee for a couple of minutes
5. Reduce the heat to low
6. To get the coffee grounds to sink to the bottom, pour the cup of cold water over the grounds
7. Pour carefully and the grounds will stay on the bottom