The Sportsmen’s League, Missouri Department of Conservation, Missouri Highway Department, local garden clubs and other volunteers continued to make improvements to the area. A roadside park and history markers were dedicated in 1956 and in 1963 the lake and additional acreage were added to the City of Carthage park system. A fountain in the lake was added in 1969, donated by Dr. Emil Oexman. A larger replacement fountain was donated in 1986 by Robert Esterly and dedicated to Haughawout and the Kelloggs. In 2002, a lake-side pavilion was added and funded by the Helen Boylan Foundation, the Kent and Mary Steadley Trust, and Infinity Lighting.
Kellogg Lake Park continues to be a draw for local families and travelers to relax and enjoy the facilities of the park including its annual June event, Kids Free Fishing Day, which draws hundreds of children. In addition, a disc golf course has been added in recent years.
The original route of U.S. Highway 66 into Carthage runs along Spring River within the park. A bridge has been removed that permitted travelers to continue down River Street to Central Avenue where 66 turned west on to Central Avenue. Traveling south on River would lead to the Carthage Tourist Park (see Clio entry for Carter Park). The intersection of River and Central was bypassed in the 1930s with a new Carthage limestone bridge which has recently been replaced with a new concrete bridge used today as MO 96 enters the city limits. just beyond Kellogg Lake Park.