ORS § 201.340
The boundary of Washington County is as follows: Commencing at the southeast corner of section 1, township 3 south, range 1 west, Willamette Meridian; thence northerly along the Willamette Meridian 13 miles; thence one mile west; thence one mile north; thence one mile west; thence one mile north; to the southeast corner of section 22, township 1 north, range 1 west; thence westerly along the south line of section 22, N 88°09:MIN.28:MIN2. W 2629.75 feet, more or less, to the easterly right-of-way of Northwest Marcotte Road, as dedicated in the Map of Replat of Lots 4 & 5 Bonny Slope, a subdivision in the Multnomah County Plat Records, and a point 25.00 feet easterly of the centerline of Northwest Marcotte Road, when measured at a right angle to the centerline, also being S 88°09:MIN.28:MIN2. E 28.28 feet, more or less, from the half-section line running north and south through section 22; thence northerly along the easterly and southerly right-of-way of Northwest Marcotte Road, being parallel with and 25.00 feet easterly and southerly of Northwest Marcotte Road, when measured at a right angle to the centerline; thence the following five courses: N 29°43:MIN.32:MIN2. E 403.77 feet, more or less, to the beginning of a 104.76-foot radius curve to the right; thence along the 104.76-foot radius curve to the right through a central angle of 78°38:MIN.00:MIN2. (chord bears N 69°02:MIN.32:MIN2. E 132.75 feet) 143.77 feet, more or less, to the end of the 104.76-foot radius curve and a point of tangency; thence S 71°38:MIN.28:MIN2. E 233.12 feet, more or less, to the beginning of a 125.00-foot radius curve to the left; thence along the 125.00-foot radius curve to the left through a central angle of 105°00:MIN.00:MIN2. (chord bears N 55°51:MIN.32:MIN2. E 198.34 feet) 229.07 feet, more or less, to the end of the 125.00-foot radius curve and a point of tangency; thence N 03°21:MIN.32:MIN2. E 59.58 feet, more or less, to the southerly right-of-way of Multnomah County Road No. 1218 (Northwest Laidlaw Road), at a point 25.00 feet southerly of the centerline of Multnomah County Road 1218, when measured at a right angle to the centerline of the road; thence leaving the rights-of-way of Northwest Marcotte Road and Multnomah County Road No. 1218, N 37°08:MIN.10:MIN2. W 43.84 feet, more or less, to the centerline of Multnomah County Road No. 1218 at centerline station 20+02.00 B.C., as shown on the map of Multnomah County Road No. 1218, map D15/13, Multnomah County Road Records; thence radial to the centerline, N 09°02:MIN.50:MIN2. W 25.00 feet, more or less, to the northerly right-of-way of Multnomah County Road No. 1218 at station 20+02.00 B.C. 25.00 feet right and the beginning of a 179.60-foot radius, nontangent curve to the right; thence along the northerly and easterly right-of-way of Multnomah County Road No. 1218, being parallel with and 25.00 northerly and easterly of the centerline of Multnomah County Road No. 1218, when measured at a right angle to the centerline of the road, the following seven courses: along the 179.60-foot radius, nontangent curve to the right through a central angle of 23°58:MIN.00:MIN2. (chord bears N 87°03:MIN.50:MIN2. W 74.58 feet) 75.13 feet, more or less, to the end of the 179.60-foot radius, nontangent curve and a point tangency at station 20+87.59 E.C. 25.00 feet right; thence N 75°04:MIN.50:MIN2. W 180.48 feet, more or less, to station 22+68.07 B.C. 25.00 feet right and the beginning of a 179.60-foot radius curve to the right; thence on the 179.60-foot radius curve to the right through a central angle of 33°17:MIN.00:MIN2. (chord bears N 58°26:MIN.20:MIN2. W 102.87 feet) 104.33 feet, more or less, to the end of the 179.60-foot radius curve and a point of tangency at station 23+86.94 E.C. 25.00 feet right; thence N 41°47:MIN.50:MIN2. W 728.26 feet, more or less, to station 31+15.20 B.C. 25.00 feet right and the beginning of a 195.40-foot radius curve to the right; thence on the 195.40-foot radius curve to the right through a central angle of 43°31:MIN.00:MIN2. (chord bears N 20°02:MIN.20:MIN2. W 144.87 feet) 148.41 feet, more or less, to the end of 195.40-foot radius curve and a point of tangency at station 32+82.57 E.C. 25.00 feet right; thence N 01°43:MIN.10:MIN2. E 575.23 feet, more or less, to station 38+57.80 B.C. 25.00 feet right and the beginning of a 216.00-foot radius curve to the left; thence along the 216.00-foot radius curve to the left through a central angle of 37°06:MIN.53:MIN2. (chord bears N 16°50:MIN.16:MIN2. W 137.49 feet) 139.92 feet, more or less, to the east line of the real property described in Deed Document 94-055215 of the Multnomah County Deed Records; thence, leaving the right-of-way of Multnomah County Road No. 1218, northerly along the east line of the real property described in Deed Document 94-055215, N 02°11:MIN.48:MIN2. E 611.94 feet, more or less, to the half-section line running east and west in section 22 and the northeast corner of the real property described in Deed Document 94-055215; thence westerly along the half section line, N 88°26:MIN.12:MIN2. W 1812.29 feet, more or less, to the northeast corner of Lot 19 of Bonny Slope, a subdivision in the Multnomah County Plat Records, and the southeast corner of the real property described in Book 600, Page 1653, of the Multnomah County Deed Records; thence northerly along the east line of the real property described in Book 600, Page 1653, N 02°11:MIN.48:MIN2. E 180.00 feet, more or less, to the northeast corner of the real property; thence westerly along the north line of the real property described in Book 600, Page 1653, N 88°26:MIN.12:MIN2. W 374.00 feet, more or less, to the northwest corner of the real property described in Book 600, Page 1653 and the easterly right-of-way of Northwest 124th Avenue at a point 25.00 feet easterly of the centerline of Northwest 124th Avenue, when measured at a right angle to the centerline of the road; thence southerly along the easterly right-of-way of Northwest 124th Avenue, being parallel with and 25.00 feet easterly of the centerline of Northwest 124th Avenue when measured at a right angle to the centerline of the road, S 02°11:MIN.48:MIN2. W 180.00 feet, more or less, to the half-section line running east and west through section 22 and the north line of the Bonny Slope subdivision; thence westerly along the half-section line, N 88°26:MIN.12:MIN2. W 215.30 feet, more or less, to the section line running north and south between section 22 and section 21; thence northerly along the section line one-half mile to the northwest corner of section 22, township 1 north, range 1 west; thence one mile west; thence one mile north; thence one mile west; thence one mile north; thence one mile west; thence one mile north; thence one mile west; thence one mile north; thence one mile west; thence one mile north; thence one mile west; thence seven miles north; thence three miles west; thence one mile north; thence two miles west; thence two miles north; thence 16 miles west; thence five miles south; thence six miles west; thence two miles south; thence one mile east; thence one mile south; thence one mile east; thence one mile south; thence one mile east; thence one mile south; thence two miles east; thence one mile south; thence two miles east; thence one mile south; thence two miles east; thence one mile south; thence one mile west; thence one mile south; thence two miles west; thence two miles south; thence two miles west; thence one mile south; thence one mile west; thence one mile south; thence one mile west; thence two miles south; thence one mile west; thence three miles south; thence one mile west; thence one mile south; thence 17 miles east; thence one mile south; thence one mile east; thence one mile south; thence four miles east; thence one mile south; thence one mile east; thence one mile south; thence one mile east; thence one mile south; thence one mile east; thence one mile south; thence three miles east; thence two miles south; thence three miles east; thence two miles north; thence two miles east; thence one mile south; thence three miles east to the place of beginning.
ORS 201.340