1943 Map of Fontana

About this map

The growing citrus and industrial corridors of San Bernardino County are prominently displayed in this 1938 survey. Extensive transit networks like the Pacific Electric and Atchison Topeka and Santa Fe railroads define the development pattern of Fontana and Rialto, where a strict grid of avenues—including Foothill Boulevard and San Bernardino Avenue—stretches across the valley floor. To the south, the landscape shifts toward the industrial and agricultural as the Fontana Aqueduct and Jurupa Canal manage the region's water. Notable local landmarks such as the Cement Plant near Crestmore and the distinctive Slover Mountain highlight the extraction industries of the era. Settlement pockets like Glen Avon, featuring the Glen Avon Ch and Glen Avon Sch, offer detail for genealogists researching these early San Bernardino and Riverside County communities before the mid-century suburban boom.