United States, Iowa, Audubon, At Plow-in-Tree Park, Exira.
41.574111 -94.896543 +-67m. WGS84
based on Collectors description
Oak savannah
Flower: N Fruit: N Vegetation: Y Bud: Y
Collector notes: A farmer called to the Civil War left, apparently in disgust, his plow against this tree; and he never returned. The oak grew around much of the plow, and today it protrudes from both sides. See photo attached, May, 1978 (Slide is enclosed in packet)