16 U.S. Code § 109 - Additional lands
The tract of land within the following-described boundaries is excluded from the Rainier National Forest and is added to and made a part of the Mount Rainier National Park, in the State of Washington:
Beginning at a point on the present east boundary of Mount Rainier National Park one and one-quarter miles southerly from the northeast corner of the said park as fixed by section 107 of this title, thence extending east to the summit of the hydrographic divide between Silver Creek and White River; thence along the summit of Crystal Mountain to the summit of the Cascade Mountains; thence southerly along the summit of the Cascade Mountains to a point in section 20, township 15 north, range 11 east, Willamette meridian, whence flow the waters of Bumping River to the east and Carlton and Cougar Creeks to the south and west; thence southwesterly along the summit of the divide between Carlton Creek and the waters flowing into the main fork of Ohanapecosh River to the quarter section line of section 9, township 14 north, range 10 east, Willamette meridian; thence westerly along the quarter section line of sections 9, 8, and 7 to the west boundary of said township; thence due west to the right or west bank of Muddy Fork of the Cowlitz River; thence northerly along the right bank of said Muddy Fork to a point exactly due east of post numbered 34 on the south boundary of Mount Rainier National Park as surveyed in 1908; thence due west to said post numbered 34; thence along the boundary of said park as surveyed in 1908 to post numbered 35; thence easterly along the south boundary of said national park as surveyed in 1908 to the southeast corner thereof; thence northerly along the east boundary of said national park as surveyed in 1908 to post numbered 59; thence along the east boundary of said park as revised by section 107 of this title, northerly to the point of beginning.
Source(Jan. 31, 1931, ch. 71, § 1,46 Stat. 1047.)