Sometime between July(ish) 2010 (lower left)…
(Iowa Geo Info Server)…and Wednesday, when I drove by and found stairs leading to an expanse of dirt.
The Algona Upper Des Moines recently had an article about reunions in nearby Ottosen. Livermore, Ottosen, and Bode joined up to form Twin Rivers in 1956, and then much later did whole-grade sharing with Gilmore City-Bradgate as Twin River Valley. But that came to an end in May, with the two districts going in separate directions.