Title 16, ConservationRelease 119-102

§221a Boundary Changed

Title 16 › CHAPTER 1 — NATIONAL PARKS, MILITARY PARKS, MONUMENTS, AND SEASHORES › SUBCHAPTER XXIV — GRAND CANYON NATIONAL PARK › § 221a

Last updated Aug 21, 2026|Official source

Summary

The Grand Canyon National Park boundary is changed to a new line that starts at the park’s current south edge at the northeast corner of township 30 north, range 1 east (Gila and Salt River meridian). The new border follows a mix of township and section lines, stays one-half mile south and west of the Supai road survey (as mapped in 1925), runs along projected section lines out to the upper west rim of Havasu (Cataract) Canyon, and then follows various canyon rims, divides, and riverbanks (including Hualapai Canyon, Wescogame Point, Watahomigie Point, a ridge about three-fourths of a mile long to an elevation of 4,865 feet, Beaver Canyon, Yumtheska Point, the divide west of Havasu Creek, the Colorado River, Tapeats Creek, and the Coconino sandstone ledge). The line continues by section lines and short measured distances (including points 950 feet and 1,320 feet from certain section corners) back to the starting point. All land inside the new line is now part of Grand Canyon National Park. Land that is removed from the old park boundary is added to the nearby national forests and must follow national forest laws and rules.

Full Legal Text

Title 16, §221a

Conservation, Source: USLM XML via OLRC

The boundary of the Grand Canyon National Park is changed so as to read as follows: Beginning at a point on the present south boundary of Grand Canyon National Park, being the northeast corner of township 30 north, range 1 east, of the Gila and Salt River meridian, Arizona; thence westerly along north line of said township to the northwest corner of section 1, said township; thence northerly along west line of section 36, township 31 north, range 1 east, to a point one-half mile south of the center line of the Supai road survey as mapped and staked by the Bureau of Public Roads during the field season of 1925; thence in a northwesterly direction following a line, which maintains a uniform distance one-half mile south and west of the center line of said road survey, to its intersection with the projected section line between what probably will be when surveyed section 9 and 16, township 32 north, range 2 west; thence westerly along projected section lines through probable townships 32 north, ranges 2, 3, and 4 west, to its intersection with the upper west rim of Havasu (Cataract) Canyon; thence northwesterly along said upper west rim, crossing Hualapai Canyon to Wescogame Point and continuing northwesterly along said upper rim to Watahomigie Point; thence due north along the top of a ridge a distance of approximately three-fourths of a mile to the point of said ridge, the elevation of which is given as four thousand eight hundred and sixty-five feet; thence northwesterly, crossing Beaver Canyon, to Yumtheska Point and continuing northwesterly, following the lower rim of Yumtheska Point, crossing the projected range line between ranges 4 and 5 west to the divide west of Havasu Creek; thence northerly along said divide to the north bank of the Colorado River; thence northeasterly along said bank to the divide immediately west of Tapeats Creek; thence northeasterly along said divide, including the entire drainage area on the north side of Tapeats Creek, to the point at which this divide touches the ledge of cross-bedded sandstone; generally known as the Coconino sandstone; thence southerly along said sandstone ledge to its junction with the Gila and Salt River meridian; thence southerly along the Gila and Salt River meridian to the northwest corner of what will probably be when surveyed section 18, township 34 north, range 1 east; thence easterly along projected section lines to the northeast corner of what will probably be when surveyed section 14, township 34 north, range 2 east; thence southerly along projected section line to the southeast corner of said section 14; thence easterly along projected section lines, a distance of approximately six miles to a point on the divide between South Canyon and Thompson Canyon; thence southeasterly along said divide, including the entire drainage area of Thompson Canyon and Neal Spring Canyon, to the intersection with the upper rim of the Grand Canyon; thence easterly along the main hydrographic divide north of Nankoweap Creek and Little Nankoweap Canyon to its intersection with the Colorado River, approximately at the mouth of Little Nankoweap Canyon; thence due east across the Colorado River to the east bank of the Colorado River; thence southeasterly along said bank, to the north bank of Little Colorado River; thence easterly along said bank of Little Colorado River to its intersection with what probably will be when surveyed the east line of section 32, township 33 north, range 6 east, or the east line of section 5, township 32 north, range 6 east; thence southerly along projected section lines to the northeast corner of what probably will be when surveyed section 8, township 30 north, range 6 east; thence westerly along projected section lines to the southwest corner of what probably will be when surveyed section 6, township 30 north, range 5 east; thence southerly to the northeast corner of section 13, township 30 north, range 4 east; thence westerly to the northwest corner of said section 13; thence southerly to the southwest corner of said section 13; thence westerly along section lines to a point nine hundred and fifty feet west of the northeast corner of section 22, said township; thence due south a distance of one thousand three hundred and twenty feet to a point on the south line of the north tier of forties of said section 22; thence westerly to the west line of said section 22; thence southerly along said west line, to the southwest corner of said section 22; thence westerly along section lines to the southwest corner of section 19, township 30 north, range 4 east; thence northerly to the northwest corner of said section 19; thence westerly to the southwest corner of section 14, township 30 north, range 3 east; thence northerly to the northwest corner of said section 14; thence westerly on section lines to the southwest corner of section 12, township 30 north, range 2 east; thence northerly along section lines to the north line of said township 30 north, range 2 east, thence westerly along said north township line to the place of beginning; and all of those lands lying within the boundary line above described are included in and made a part of the Grand Canyon National Park; and all of those lands excluded from the present Grand Canyon National Park are included in and made a part of the contiguous national forests, subject to all national forest laws and regulations.

Reference

Citations & Metadata

Citation

16 U.S.C. § 221a

Title 16, Conservation

Last Updated

Aug 21, 2026

Release point: 119-102