 Because Cherry Creek and the South Platte meet at nearly a 90° angle, the cross streets of Auraria were nearly parallel to the streets of Denver and vice versa.In 1864, developer Henry C. Brown laid out the first streets in Denver parallel to the cardinal directions, with streets running directly north–south and east–west.His grid was located directly east of Denver (which had absorbed Auraria in 1860), from what is now Broadway to the alley between Grant and Logan Streets and from 11th to 20th Avenues.