From the record
“The Grenola Mill and Elevator is a grain elevator complex on Railroad Avenue in Grenola, Kansas. It was built in about 1909 and was listed on the National Register of Historic Places in 2002.”
Wikipedia article Grenola Mill and Elevator, CC BY-SA 4.0.
One of 5 National Register listings published here for Elk County · listed in 2002 · category: Building · built in 1909.
Sources: the Wikipedia article · the National Register database, National Park Service