El Paso County

El Paso County is the westernmost county of Texas. Its center point is 106°10' west longitude and 31°40' north latitude. Bounded on the southwest by the Rio Grande and Mexico, on the north and west by the state of New Mexico, and on the east by Hudspeth County, Texas, El Paso County is approximately 650 miles west of Dallas and 575 miles northwest of San Antonio. El Paso County and neighboring Hudspeth County are the only Texas counties on Mountain Time. The county comprises 1,057 square miles of desert and irrigated land that rises from an elevation of 3,500 feet at the Rio Grande to 7,000 feet at the summits of the Franklin Mountains. The Rio Grande valley in this area has been irrigated since prehistoric times and produces bountiful harvests of cotton, pecans, and alfalfa, and lesser amounts of numerous vegetables and fruits. Agriculture depends entirely upon irrigation from the river; the average annual rainfall is only 7.77 inches. Desert flora and fauna abound away from the river, while fertile fields and gardens flourish under irrigation. Although summer temperatures usually rise above 100° F for brief periods and have reached a peak of 112, El Paso is not one of the nation's hot spots. A pleasant altitude and low humidity make most summer days agreeable. The average maximum temperature in July is 94° F. The average growing season lasts 248 days. Winters are pleasant, with occasional light snows, although such extremes as fourteen inches of snow and 8° below zero are on record. Some 240 square miles of the county is occupied by the city of El Paso (population, 669,882), the largest United States city on the Mexican border, the fourth largest in Texas, and nineteenth in the United States. Although a major industrial area, El Paso County has few natural resources other than abundant sunshine and bounteous agriculture. There is no oil production, although there are two oil refineries. There is little if any mineral production, although the county has long been a trade center for Southwest mining and contains a major smelter and a major copper refinery. The county is the only county in the United States to have mined, milled, and smelted tin. The source, deposits of cassiterite in the Franklin Mountains, was found insufficient for profitable operation.

Adapted from the official Handbook of Texas, a state encyclopedia developed by the Texas State Historical Association (TSHA). It is an authoritative source of trusted historical records.