ORS § 201.090
The boundary of Deschutes County is as follows: Beginning at the southeast corner of township 22 south, range 23 east of the Willamette Meridian; thence westerly along township lines to the summit of the Cascade Range; thence northerly along the summit of the Cascade Range to the line between township 13 and 14 south; thence easterly along such township line to the northeast corner of township 14 south, range 13 east; thence southerly along the east line of range 13 east to the southwest corner of township 16 south, range 14 east; thence easterly to the southeast corner of such township; thence southerly along the range line to the southwest corner of township 18 south, range 15 east; thence easterly along township lines to the northwest corner of township 19 south, range 17 east; thence southerly to the southwest corner of such township; thence easterly to the northeast corner of township 20 south, range 19 east; thence southerly to the southeast corner of such township; thence easterly to the northeast corner of township 21 south, range 20 east; thence southerly to the southeast corner of such township; thence easterly to the range line between ranges 23 and 24 east; thence southerly along such range line to the place of beginning.
ORS 201.090