In my area of the world, that symbol almost always means a race track that was usually found in conjunction with a fair grounds.
However, there are some places that have a high density of tracks because the region is known for training horses. I've found a few places that have 4 or 5 tracks in a 10 mile radius. Anyhow, if they are fairly close to one another, you might want to dig a little deeper and see if the area is known for training horses.
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