Alma Mill 6, also known as Raymond Grob, is a water management structure located in Buffalo, Wisconsin, along the FIMIAN river. Constructed in 1963 by the USDA NRCS, this earth-type dam stands at a height of 28 feet and stretches 696 feet in length, providing debris control and flood risk reduction for the surrounding area. With a storage capacity of 35 acre-feet and the ability to discharge up to 1504 cubic feet per second, Alma Mill 6 plays a crucial role in managing water flow and maintaining safety in the region.

Managed by the Wisconsin Department of Natural Resources, Alma Mill 6 has been classified as having a low hazard potential and fair condition, with a moderate risk assessment rating. Regular inspections are conducted to assess its structural integrity and ensure its continued effectiveness in mitigating potential risks. Although located in a relatively remote area, the dam serves a vital function in protecting downstream communities and infrastructure from potential flooding events.

Owned and regulated by local government authorities, Alma Mill 6 is a key piece of infrastructure in the region's water resource management strategy. With a history dating back to the 1960s, this dam continues to play a crucial role in safeguarding against the impacts of extreme weather events and maintaining the overall resilience of the surrounding ecosystem. For water resource and climate enthusiasts, Alma Mill 6 stands as a testament to the importance of proactive infrastructure planning and maintenance in the face of a changing climate.