
Moreno Valley dominates the central landscape of this 2021 study, illustrating the dense suburban layout that has transformed this portion of Riverside County. The map details the transition from the developed residential blocks around Sunnymead and Moreno to the more dramatic natural topography of The Badlands and the San Jacinto Mountains at the northern and eastern edges. Infrastructure plays a critical role in the region's geography, highlighted by the path of the Governor Edmund G Brown Jr California Aqueduct as it moves through the southern reaches of the valley.
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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
1898 · San Bernardino
USGS Topo · 1:62,500
1899 · Redlands
USGS Topo · 1:62,500
1901 · Southern California Sheet No. 1
USGS Topo · 1:250,000
1901 · San Bernardino
USGS Topo · 1:62,500
1901 · Redlands
USGS Topo · 1:62,500
1901 · Elsinore
USGS Topo · 1:125,000
1901 · Riverside
USGS Topo · 1:62,500
1904 · Southern California Sheet No. 1
USGS Topo · 1:250,000
1938 · Colton
USGS Topo · 1:31,680