Lake Willastein Park

Maumelle is a city in Pulaski County, Arkansas, United States. As of the 2010 census, the city population was 17,163. The city is located northwest of Little Rock, bordering the opposite shore of the Arkansas River and is part of the Little Rock metropolitan area.

The Maumelle Ordnance Works Bunker No. 4 is a historic munitions storage facility at 4 Willastein Drive in Maumelle, Arkansas. It is a concrete structure, 61 by 27 feet (18.6 m × 8.2 m), with a rounded roof and ventilation stack. It is covered with earth, with a trapezoidal concrete side wall exposed, which has a steel door at its center.