McLean was distinctive in that there were no streets between the diagonal line of lots along the tracks. Perhaps because of this, much of the business district developed along Morgan Street, which ran east–west just north of the park, or along Hamilton Street, which ran north–south, just west of the park. The line of lots paralleling the tracks and southeast of the railroad became the location of the hotel and the town jail. Later additions on the east side of the town featured additional lots which parallel the railroad as well as more conventional blocks.