Crater Lake National Park: Administrative History by Harlan D. Unrau and Stephen Mark, 1987
CHAPTER NINE: Legislation Relating to Crater Lake National Park: 1916-Present
A. LEGISLATIVE ACTS
4. An Act to Add Certain Land to the Crater Lake National Park in the State of Oregon, and for Other Purposes (47 Stat. 155–May 14, 1932)
The long-sought effort to provide a more attractive southern entrance to the park and secure a more available water supply for park utilization was achieved by legislation in June 1932. On March 1 of that year Representative Robert R. Butler of Oregon introduced a bill (H.R. 9970) providing for the transfer of land from Crater National Forest to the park for such purposes. As introduced the bill provided:
That all of unsurveyed sections 2 and 11, north half and north half south south half section 14, and those parts of unsurveyed sections 1, 12, and 13, lying west of Anna Creek, in township 32 south, range 6 east, Willamette meridian in the State of Oregon be, and the same are hereby, excluded from the Crater National Forest and made a part of the Crater Lake National Park subject to all laws and regulations applicable to and governing said park. 
After the bill was referred to the House Committee on Public Lands its chairman, John M. Evans of Montana, requested the views of the Interior and Agriculture departments on the proposed legislation. On March 18 Secretary of the Interior Ray L. Wilbur submitted a memorandum in support of the bill that had been prepared by National Park Service Director Horace M. Albright three days before. In his memorandum Albright stated:
The extension proposed to be authorized by this legislation is the so-called Annie Creek extension of approximately 973 acres, to the south of Crater Lake National Park as recommended by the Coordinating Commission on National Parks and Forests.
The purposes of this extension are to secure for the Crater Lake National Park a more attractive entrance amid fine yellow pine forests and to secure a more available water supply for park purposes. This is of great administrative importance.
Because of unfavorable natural conditions and lack of available water supply at the south entrance to Crater Lake National Park, the idea of extending the park boundary some 3 miles farther south to include Annie Creek and the highway has been under consideration for the past five or six years. Such extension would provide a far more imposing park entrance and at the same time enable the development of a gravity water supply for ranger uses at the entrance.
The area was inspected by the Coordinating Commission on National Parks and Forests in 1926 and full agreement was reached on this proposed extension, which was also concurred in by the Forest Service. . . .
Albright went on to report that “an entirely new description of the area proposed to be added to the park” should be given in the bill. Hence he recommended new boundaries for the addition to the park: