Mormon Battalion Mountain and the steep ridges of the San Bernardino National Forest overlook the transition from rugged canyons to the expanding suburban landscape of North Fontana. This map documents a critical transportation corridor where Cajon Blvd and the interstate system navigate the natural passage of Cajon Canyon and Sycamore Canyon. The contrast between the undeveloped northern reaches, featuring landmarks like San Sevaine Lookout and Pitman Canyon, and the dense residential grids of Sierra Heights and Walnut Ridge to the south illustrates the rapid urbanization of the Inland Empire. Significant infrastructure and community markers, including the Rialto Municipal Airport, the Glen Helen Rehabilitation Facility, and the settlement at Devore, anchor the landscape. Water resources like Stone Reservoir and the drainage of Lytle Cr Wash define the hydrology of this semi-arid region at the foot of the mountains.
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This is the sole edition of this map. No revisions or reprints were ever made.
1896 · San Bernardino
USGS Topo · 1:62,500
1897 · Cucamonga
USGS Topo · 1:62,500
1898 · San Bernardino
USGS Topo · 1:62,500
1900 · Cucamonga
USGS Topo · 1:62,500
1901 · Southern California Sheet No. 1
USGS Topo · 1:250,000
1901 · San Bernardino
USGS Topo · 1:62,500
1902 · Hesperia
USGS Topo · 1:62,500
1903 · Cucamonga
USGS Topo · 1:62,500
1903 · San Antonio
USGS Topo · 1:62,500
1904 · Southern California Sheet No. 1
USGS Topo · 1:250,000