Oak Grove is a suburb of Portland that started more than a century ago, when the nation's first interurban electric rail line connected Portland with Oregon City. People began building large homes on large lots along the rail line, and a community sprang up.

Over the years, many of the lots have been broken up, but in some areas, as here, they average more than a third of an acre in size and some are more than an acre. This means the area has very low densities and, in turn, not much automobile traffic.

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