1956 Map of Kreyenhagen Hills

About this map

Coalinga Oil Field dominates the northwest corner of this mid-century survey, where a network of Oil Wells, Oil Tanks, and Oil Sump sites reveal the industrial character of the Fresno County landscape. The terrain transitions from the relatively level Pleasant Valley into the dissected uplands of the Jacalitos Hills and Kreyenhagen Hills. This area is defined by its ranching history, with numerous established family holdings such as the Kreyenhagen Ranch, Van Dyke Ranch, and Johnson Ranch situated along the seasonal drainages. Water management is critical in this arid environment, evidenced by the scattered Grain Tank and Water Tank labels and the winding courses of Jacalitos Creek and Warthan Creek. The presence of several Gas Wells alongside the petroleum infrastructure underscores the diverse energy extraction activities that shaped the local economy during this era.