On April 14, 1908, the first Hauser Dam on the Missouri River, located just south of Helena, Montana, was completed. This hydroelectric dam was a monumental engineering feat for its time, marking a significant advancement in Montana's infrastructure and industrial development. The dam harnessed the power of the Missouri River to generate electricity, providing a crucial energy source for the growing mining operations and communities in the region.

Its construction represented a major investment in the state's future, transforming the landscape and contributing to the economic prosperity of Montana. The Hauser Dam played a vital role in the electrification of the state and remains an important part of Montana's energy infrastructure, symbolizing the ingenuity and ambition of early 20th-century development.