Driving home from Des Moines on Interstate 80 on a spring day in May 2006, we spotted this school about a mile north of the highway when we were just west of the Grinnell exit.  So we headed up the road into Grinnell and discovered this school to be about one mile west of the Grinnell airport.  Although it is now used as a house, the old swing set was still there.
[Image][Image] 4/17/10 update:  We shot these photos today for some better color and contrast.  The exact location is on 410th Avenue at the SE corner of 20th St, 1 mile west of Iowa SR146.  The swingset is no longer there and the side yard is full of cars and other junk so we didn't shoot the west side as before.
[Image][Image]
UPDATE 11/14/16:  This school closed in the early 1950s.