Bass is a privately owned water resource located in Johnson, Wyoming, specifically in the city of ARVADA. Built in 1969, this earth dam serves multiple purposes including fire protection, stock watering, and a small fish pond. With a height of 28 feet and a capacity of 118 acre-feet, Bass is crucial for maintaining water levels in the region. The dam is regulated and inspected by the Wyoming State Engineer's Office, ensuring its safety and compliance with state regulations.

Situated on the Hoffman Draw river, Bass has a spillway width of 40 feet and an uncontrolled spillway type. Despite being classified as having a low hazard potential, the dam's condition is assessed as fair with a moderate risk level. The last inspection in September 2020 revealed that the dam is structurally sound, but there are potential risks that need to be managed. With Liz Cheney being the congressional representative for the area, Bass plays a vital role in water management and conservation efforts in Wyoming's diverse climate and water resource landscape.