Beginning early in the twentieth century there were advocates of an extension southward. Many people wanted to have the cathedral-like Tetons incorporated in the Park. A campaign for a Greater Yellowstone was launched, and in 1918 Representative Mondell introduced a measure (H.R. 11661) providing for their incorporation.[348] However, the matter was delayed, and the passing of time resulted in the establishment of the Grand Teton National Park. A national park may only be created by an act of Congress; whereas an executive order is sufficient for the creation of a national monument or a moderate extension of a park boundary. Through a proclamation issued by President Hoover on October 20, 1932, Yellowstone National Park acquired a triangular strip of 7,600 acres of land, now called the Stevens Creek area. It is located northwest of Gardiner townsite, and it was enlarged to the extent of nearly a thousand acres the next year. In affairs of this character the National Park Service and the Superintendent work in close cooperation with the Secretary of the Interior. Indeed, the superintendency of Yellowstone is one of the ranking positions of its kind in the National Park Service. His final obligation is to be sure that the original objective “for the benefit and enjoyment of the people” is still the chief and ever-constant purpose. It has been pointed out that the fulfillment of this objective is rather difficult, because various interests and groups have their own ideas concerning the purposes and methods of administering national parks. For example, in Idaho, there are some organizations that seek an Idaho entrance to the Park on Fall River. They point to the fact that distance and time would be appreciably reduced in reaching Old Faithful via this route. Besides, they aver, such an entrance would traverse a beautiful scenic area. These contentions are both valid and understandable. So is the demand for landing strips and airport facilities within the reservation boundaries. The latter project, it is held, is identical to the position raised by motorists in 1915. National Park officials have met these issues squarely. Director Conrad L. Wirth and his Yellowstone representatives have vetoed both proposals. “Surely,” they reason, “the Park is for the people, but if it is multisected by highways and airways, what will become of the primitive areas?” Sizeable regions are essential for the propagation and preservation of wild life. In addition, they point to the fact that as of this date most people conceive of the parks as havens of relative quiet and rest.