Oakdale School (Madison, Indiana)
Oakdale School  | |
| Location | Morgan Rd., Jefferson Proving Ground, Monroe Township, Jefferson County, Indiana | 
|---|---|
| Coordinates | 38°50′24″N 85°25′33″W / 38.84000°N 85.42583°W | 
| Area | less than one acre | 
| Built | 1869 | 
| Architectural style | Gable-front | 
| NRHP reference No. | 93000432 | 
| Added to NRHP | May 14, 1993 | 
Oakdale School, also known as Building 401, is a historic one-room school building located within Big Oaks National Wildlife Refuge (formerly Jefferson Proving Ground) in Monroe Township, Jefferson County, Indiana. It was built in 1869, and is a one-story, rectangular limestone building. It measures 24 feet wide and 30 feet deep, and has a front gable roof.: 2–3
It was listed on the National Register of Historic Places in 1993.