Heritage Collection 1910s Montana Peak Campaign Wool Felt HatMade in the USA The 1910's saw the advent of a true piece of Americana in the Montana Peak Hat (Campaign Hat). Its popularity "peaked" on September 8th, 1911 when it was adopted by the United States Army. What began as a military standard has since become a symbol of both protection and conservation as uniforms of state troopers and park rangers nationwide. The Montana Peak has run the gamut from civic service to the great outdoors. And as the Great