Heber topographic map

Average elevation: -7 m

The Gulf of California would extend as far north as the city of Indio, were it not for the delta created by the Colorado River. Over three million years, through all of the Pleistocene, the river's delta expanded until it cut off the northern part of the gulf. Since then, the Colorado River has alternated…

Average elevation: 9 m

Average elevation: 130 m

At an elevation of 180 feet (55 m) below sea level, Calipatria is the lowest incorporated city in the Western Hemisphere. The city currently claims to have the "tallest flagpole (184 feet) where the flag flies at sea level" at 184 feet (56 m), so their American flag will always fly above sea level. According…

Average elevation: -50 m

In the 1970s, most of the buildings constructed along the shoreline, including the city's marina were abandoned due to rising sea elevation. In the 1980s, the Imperial Irrigation District took proactive water conservation measures to reduce the flow of unused canal water into the Salton Sea. Throughout the…

Average elevation: -35 m

Average elevation: -40 m

At an elevation of 180 feet (55 m) below sea level, Calipatria is the lowest elevation city in the western hemisphere. The city currently claims to have the "tallest flagpole (184 feet) where the flag flies at sea level" at 184 feet (56 m), so their American flag will always fly above sea level. According to…

Average elevation: -53 m

Average elevation: -58 m

Average elevation: -10 m