1966 Map of Cucamonga Peak

About this map

Cucamonga Peak towers over the alluvial fans of the San Gabriel and San Bernardino Mountains, marking a sharp transition between the Cucamonga Wilderness and the burgeoning suburban development of the San Bernardino Valley. In the valley below, the citrus-aligned street grids of Alta Loma and Etiwanda are well-defined, showing the residential expansion nearing Chaffey Union Jr College. The landscape is dominated by complex drainage systems such as Day Canyon Wash and Deer Creek, which necessitate the large Flood Control Basin visible near the southern boundary. High-altitude landmarks like the Joe Elliot Tree Memorial and Kelly Camp sit along the Ontario Peak Trail, while the lower slopes trace the path of the Southern Pacific and an Old Railroad Grade, revealing the historical transportation routes that shaped this portion of the Inland Empire.