Original sentence: At elevation -184 feet (184 feet  [56 meters] below sea level), Calipatria is the lowest city in the western hemisphere.This flagpole, in front of the local Chamber of Commerce, is far shorter than the 430 foot pole in Aqaba, Jordan, the 338 foot pole in Sheboygan, Wisconsin, or even the 200 foot pole in Dorris, California, but it is probably the tallest flagpole in the Imperial Valley
Edited sentence: At elevation of  below sea level, Calipatria is the lowest city in the western hemisphere.However, this flagpole, in front of the local Chamber of Commerce, is far shorter than the  in Kijŏng-dong, North Korea, the  pole in Aqaba, Jordan, the  pole in Sheboygan, Wisconsin or even the  pole in Dorris, California, but it is probably the tallest flagpole in the Imperial Valley