I don't know which crime map you are looking at so I can only propose some possible explanations.
The Los Gatos Creek Trail runs behind homes on one side of the street. Crimes reported anywhere along the trail may be counted as nearby even though they aren't.
There may be crimes reported which are related to the public land associated with the creek such a vagrancy, unlawful disposal of trash, etc
The Willow Street may simply be the arbitrary dividing line between areas.
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