2023 New York Laws › STL - State › Article 2 - State Boundaries › 3 - Massachusetts Boundary Line.

§ 3. Massachusetts boundary line. The boundary line between the states
  of  New  York and Massachusetts is as follows: Beginning at bound one, a
  granite monument set in ledge on the side of a wooded mountain peak  six
  hundred  and  nine  feet  east  of Ryan bush road, in latitude forty-two
  degrees two  minutes  fifty-eight  and  four  hundred  and  twenty-seven
  thousandths  seconds  north  of the equator, and longitude seventy-three
  degrees twenty-nine minutes fifteen  and  nine  hundred  and  fifty-nine
  thousandths  seconds  west  from  Greenwich,  and  marking the northwest
  corner of Connecticut, a corner of the  commonwealth  of  Massachusetts,
  and  a  corner  of the state of New York; thence on an azimuth of ninety
  degrees forty-three minutes forty-nine seconds  twenty-six  hundred  and
  twenty-four  feet to bound three, a granite monument set in ledge on the
  steep westerly slope of a wooded mountain, in latitude forty-two degrees
  two minutes fifty-eight and  seven  hundred  and  fifty-six  thousandths
  seconds  and  longitude  seventy-three  degrees  twenty-nine minutes and
  fifty and seven hundred and thirty-seven  thousandths  seconds,  at  the
  southwest  corner of Massachusetts, also in the eastern line of New York
  and marking a corner of the towns of Mount Washington in  Massachusetts,
  and  Ancram  and  northeast  in  New  York;  thence on an azimuth of one
  hundred and sixty-seven degrees eight minutes fifteen seconds,  thirteen
  thousand  six  hundred  and  forty-nine  feet  to  bound nine, a granite
  monument set in ledge on the westerly wooded slope of  Alandar  mountain
  about  a  quarter  of  a  mile west of its summit, in latitude forty-two
  degrees five minutes ten and two hundred and  five  thousandths  seconds
  and  longitude  seventy-three  degrees  thirty  minutes  thirty-one  and
  thirty-one thousandths seconds, at the corner  of  Mount  Washington  in
  Massachusetts  and  Copake  in  New  York;  thence  on an azimuth of one
  hundred and ninety-five degrees twelve minutes twenty-two  seconds,  two
  hundred forty-nine thousand two hundred and forty-six feet, by the towns
  of  Mount  Washington,  Egremont,  Alford,  West  Stockbridge, Richmond,
  Hancock  and  Williamstown  in  Massachusetts,  and  Copake,  Hillsdale,
  Austerlitz,  Canaan,  New Lebanon, Stephentown, Berlin and Petersburg in
  New York, to bound one hundred and twelve, a  granite  monument  set  in
  ledge  and  earth on an open easterly slope about seventy-five feet west
  of a private roadway, in latitude forty-two degrees  forty-four  minutes
  forty-five  and  two  hundred  and one thousandths seconds and longitude
  seventy three degrees fifteen minutes fifty-four and  nine  hundred  and
  four thousandths seconds, at the northwest corner of Massachusetts, also
  in  the  east  line  of  New  York and in the south line of Vermont, and
  marking a corner in the boundaries  of  the  towns  of  Williamstown  in
  Massachusetts,  Petersburg  in New York, and Pownal in Vermont. The term
  "azimuth," as used in this description, is the angle which a line  makes
  at  its  point  of  beginning with the true meridian, reckoning from the
  south around by the west. In addition to the monuments at  the  ends  of
  the  above mentioned straight lines other monuments have been set at the
  points of intersection  of  the  above  described  straight  lines  with
  highways,  railroads  and  boundary lines of three towns in New York and
  seven towns  in  Massachusetts;  also  at  mile  points,  excepting  the
  twenty-second   and   twenty-third  miles,  which  are  unmarked.  These
  additional marks  are  described  as  follows:  Beginning  at  the  said
  northwest  corner  of Connecticut; thence westerly about six hundred and
  nine feet to a monument on the west  side  of  Ryan  Bush  road;  thence
  westerly  about  two  thousand  and  fifteen feet to bound three, at the
  southwest  corner  of   Massachusetts   previously   described;   thence
  northwesterly  about twenty-six hundred and fifty-six feet to a monument
  marking the first mile point;  thence  northwesterly  about  forty-eight
  hundred  and  fifty-five  feet  to  a  monument on the north side of the
  Roberts road; thence northwesterly about three hundred and  thirty  feet

  to  a  monument  at  the  corner of Ancram, Copake and Mount Washington;
  thence northwesterly about ninety-five feet to a  monument  marking  the
  second  mile  point;  thence  northwesterly  about fifty-two hundred and
  eighty  feet  to  a  monument  marking  the  third  mile  point;  thence
  northwesterly about four hundred and thirty-three feet to bound nine, on
  Alandar  mountain   previously   described;   thence   northerly   about
  thirty-four  hundred  and  eighty-six feet to a monument at the boundary
  summit of the Bashbish mountain; thence northerly about thirteen hundred
  and sixty-one feet to a monument marking the fourth mile  point;  thence
  northerly  about fifty-two hundred and eighty feet to a monument marking
  the fifth mile point; thence northerly about twelve hundred and nineteen
  feet to a monument on the  north  side  of  the  Bashbish  road;  thence
  northerly  about  twenty-five hundred and seventy-six feet to a monument
  at the  boundary  summit  of  Cedar  mountain;  thence  northerly  about
  fourteen  hundred  and  eighty-five feet to a monument marking the sixth
  mile point; thence northerly about twenty-eight hundred and  forty-eight
  feet  to  a  monument  at  the  boundary  summit  of Dugway hill; thence
  northerly about nine hundred and eighty-five feet to a monument  on  the
  north  side  of  the  Mount  Washington-Hillsdale road; thence northerly
  about fourteen hundred and forty-seven feet to a  monument  marking  the
  seventh mile point; thence northerly about six hundred and seventy-seven
  feet  to  a  monument  at  the boundary summit of Mount Prospect; thence
  northerly about forty-five hundred and ninety-four feet to a monument at
  the corner of Copake, Egremont and Mount  Washington;  thence  northerly
  about  nine  feet  to  a  monument marking the eighth mile point; thence
  northerly about nine hundred and seventy  feet  to  a  monument  at  the
  boundary  summit  of  Mount  Fray;  thence  northerly  about forty-three
  hundred and ten feet to a monument marking the ninth mile point;  thence
  northerly  about  fourteen  hundred and fifty-nine feet to a monument on
  the north side of the Hillsdale-South Egremont  road;  thence  northerly
  about four hundred and seventy-eight feet to a monument at the corner of
  Copake,  Egremont  and  Hillsdale;  thence  northerly about thirty-three
  hundred and forty-three feet to a monument marking the tenth mile point;
  thence northerly about twenty-seven hundred and  eighty-six  feet  to  a
  monument  on the north side of the Hillsdale-North Egremont road; thence
  northerly about twenty-four hundred and ninety-four feet to  a  monument
  marking  the  eleventh  mile  point;  thence  northerly about forty-four
  hundred and eight feet to a monument on the  south  side  of  the  North
  Egremont-North  Hillsdale road; thence northerly about eight hundred and
  seventy-two feet to a monument marking the twelfth  mile  point;  thence
  northerly  about  twenty-five hundred and forty-three feet to a monument
  at the corner of Alford, Egremont and Hillsdale; thence northerly  about
  three  hundred and seventy-three feet to a monument on the north side of
  the Whites Hill road; thence northerly about  twenty-three  hundred  and
  sixty-four  feet to a monument marking the thirteenth mile point; thence
  northerly about thirty-eight hundred and ninety-three feet to a monument
  on the south  side  of  the  Green  River-North  Egremont  road;  thence
  northerly  about  thirteen  hundred  and eighty-seven feet to a monument
  marking the fourteenth mile point; thence northerly  about  twenty-three
  hundred  and  five  feet  to  a  monument on the north side of the Green
  River-Great Barrington road; thence northerly about twenty-five  hundred
  and  thirty-two  feet  to a monument on the south side of a road; thence
  northerly about four hundred and forty-three feet to a monument  marking
  the fifteenth mile point; thence northerly about thirty-five hundred and
  twenty-seven  feet  to a monument at a boundary summit; thence northerly
  about seventeen hundred and fifty-three feet to a monument  marking  the
  sixteenth  mile  point;  thence  northerly  about  fourteen  hundred and
  ninety-four feet to a monument on the north  side  of  the  Alford-Green

  River  road;  thence  northerly  about thirty-four hundred and fifty-six
  feet to a monument on the north side of a road; thence  northerly  about
  three hundred and thirty feet to a monument marking the seventeenth mile
  point;  thence  northerly  about  fifty-two hundred and eighty feet to a
  monument marking the eighteenth mile point; thence northerly about  five
  hundred  and  fifty-three  feet  to  a monument at the corner of Alford,
  Austerlitz and West  Stockbridge;  thence  northerly  about  forty-seven
  hundred  and twenty-seven feet to a monument marking the nineteenth mile
  point; thence northerly about fifteen  hundred  and  ninety  feet  to  a
  monument  at the boundary summit of Mount Harvey; thence northerly about
  thirty-six hundred and ninety feet to a monument marking  the  twentieth
  mile point; thence northerly about twenty-nine hundred and two feet to a
  monument  on  the  south  side  of the Austerlitz-West Stockbridge south
  road; thence northerly about three hundred and twenty-seven  feet  to  a
  monument  on  the  south  side  of  a  road;  thence northerly about two
  thousand and eight  feet  to  a  monument  on  the  south  side  of  the
  Austerlitz-West   Stockbridge   north   road;   thence  northerly  about
  forty-three feet to a monument  marking  the  twenty-first  mile  point;
  thence  northerly  about  twenty-six  hundred  and thirty-five feet to a
  monument on the north side of a road; thence northerly about twenty-four
  hundred and nine feet to a monument on the south side of the Canaan-West
  Stockbridge road; thence northerly about one hundred and fifteen feet to
  a monument on the Boston and Albany railroad; thence northerly about one
  hundred and sixty-six feet to a  monument  on  the  north  side  of  the
  Canaan-Richmond Furnace south road; thence northerly about three hundred
  and  ninety-one feet to a monument at the corner of Canaan, Richmond and
  West  Stockbridge;  thence  northerly  about  forty-eight  hundred   and
  thirty-four  feet to a monument on the south side of the Canaan-Richmond
  Furnace north road; thence northerly about eight hundred and twenty feet
  to a monument on the east side  of  the  Cunningham  Hill  road;  thence
  northerly about eight hundred and ninety-seven feet to a monument at the
  boundary  summit  of Cunningham hill; thence northerly about thirty-five
  hundred and seventy-three feet to a monument marking  the  twenty-fourth
  mile point; thence northerly about one hundred and sixty-seven feet to a
  monument on the south side of the Canaan-Richmond road; thence northerly
  about  twenty-eight  hundred and thirteen feet to a monument on the west
  side of a road; thence northerly about twelve  hundred  and  eighty-five
  feet  to  a  monument  on  the south side of the Canaan-Pittsfield road;
  thence northerly about one thousand  and  fifteen  feet  to  a  monument
  marking  the  twenty-fifth  mile point; thence northerly about fifty-two
  hundred and eighty feet to a  monument  marking  the  twenty-sixth  mile
  point;  thence  northerly  about  fifty-two hundred and eighty feet to a
  monument marking the twenty-seventh mile point; thence  northerly  about
  eighteen  hundred  and  ninety-nine  feet to a monument at the corner of
  Canaan, Hancock and Richmond, on Perry's Peak;  thence  northerly  about
  thirty-three  hundred  and  eighty-one  feet  to  a monument marking the
  twenty-eighth mile point; thence northerly about seventeen  hundred  and
  ninety-two   feet  to  a  monument  on  the  south  side  of  the  Mount
  Lebanon-Pittsfield  road;  thence  northerly  about  eighty  feet  to  a
  monument  on the north side of the Mount Lebanon-Pittsfield road; thence
  northerly about thirty-three hundred and twenty-four feet to a  monument
  on  the  north  side  of  the  state  highway between Pittsfield and New
  Lebanon; thence northerly about eighty-four feet to a  monument  marking
  the twenty-ninth mile point; thence northerly about thirty-three hundred
  and  fifteen feet to a monument at the boundary summit of Mount Lebanon;
  thence northerly  about  nineteen  hundred  and  sixty-five  feet  to  a
  monument  marking  the  thirtieth  mile  point;  thence  northerly about
  fifty-two hundred and eighty feet to a monument marking the thirty-first

  mile point; thence northerly about two hundred and fifty-six feet  to  a
  monument  on  the north side of the old Lebanon Springs-Pittsfield road;
  thence northerly about eleven hundred and eight feet to  a  monument  on
  the  south side of the Lebanon Springs-Pittsfield road; thence northerly
  about thirty-nine hundred and sixteen feet to  a  monument  marking  the
  thirty-second  mile  point;  thence  northerly  about  nine  hundred and
  ninety-six feet to a monument at the boundary  summit  of  Clover  hill;
  thence  northerly  about  forty-two  hundred  and  eighty-four feet to a
  monument marking the thirty-third mile  point;  thence  northerly  about
  twenty-five  hundred and fifty-five feet to a monument on the south side
  of Goodrich Hollow road; thence northerly about twenty-seven hundred and
  twenty-five feet to a monument marking  the  thirty-fourth  mile  point;
  thence  northerly  about fifty-two hundred and eighty feet to a monument
  marking the thirty-fifth mile point; thence northerly  about  twenty-six
  hundred  and  eighty-nine  feet  to  a monument on the north side of the
  Hancock-Stephentown road; thence northerly about twenty-five hundred and
  ninety-one feet to a monument marking the thirty-six mile point;  thence
  northerly  about fifty-two hundred and eighty feet to a monument marking
  the thirty-seventh mile point; thence northerly about two  thousand  and
  sixty-five feet to a monument at the boundary summit of Rounds mountain;
  thence northerly about thirty-two hundred and fifteen feet to a monument
  marking  the  thirty-eighth mile point; thence northerly about fifty-two
  hundred and eighty feet to a  monument  marking  the  thirty-ninth  mile
  point;  thence  northerly  about  fifty-two hundred and eighty feet to a
  monument  marking  the  fortieth  mile  point;  thence  northerly  about
  forty-nine  hundred  and  seventy-four  feet  to  a monument marking the
  boundary summit of Mount Misery; thence northerly  about  three  hundred
  and  six  feet  to a monument marking the forty-first mile point; thence
  northerly about fifty-two hundred and eighty feet to a monument  marking
  the  forty-second  mile  point;  thence northerly about nine hundred and
  seventy-two feet to a monument at the  corner  of  Berlin,  Hancock  and
  Williamstown;  thence  northerly about two thousand and eleven feet to a
  monument on the north side of the Sweet  road;  thence  northerly  about
  twenty-two  hundred  and  ninety-seven  feet  to  a monument marking the
  forty-third mile point; thence northerly  about  fifty-two  hundred  and
  eighty  feet  to  a monument marking the forty-fourth mile point, on the
  north slope of Rhodes Pinnacle; thence northerly about two thousand  and
  fifty-six  feet  to  a  monument on the south side of Mills Hollow road;
  thence northerly about thirty-two hundred  and  twenty-four  feet  to  a
  monument  marking  the  forty-fifth  mile  point; thence northerly about
  forty-six hundred and two feet to a monument on the north  side  of  the
  Beebe  Hollow road; thence northerly about six hundred and seventy-eight
  feet to a monument marking the forty-sixth mile point; thence  northerly
  about  twenty-one hundred and seventy feet to a monument at the boundary
  summit of Berlin mountain; thence northerly about thirty-one hundred and
  ten feet to a monument marking  the  forty-seventh  mile  point;  thence
  northerly  about  sixteen  hundred and thirty-five feet to a monument on
  the north side of the Berlin-Williamstown road; thence  northerly  about
  thirty-six  hundred  and  forty-five  feet  to  a  monument  marking the
  forty-eighth mile point; thence northerly about thirty-four hundred  and
  sixty-three  feet  to  a  monument  on  the  south  side  of  the  South
  Williamstown-Petersburg road; thence northerly about three  hundred  and
  seven    feet    to    a   monument   on   the   north   side   of   the
  Williamstown-Petersburg road; thence northerly about fifteen hundred and
  ten feet to a  monument  marking  the  forty-ninth  mile  point;  thence
  northerly  about  thirty-one hundred and twenty-seven feet to a monument
  at the boundary  summit  of  Jim  Smith  hill;  thence  northerly  about
  twenty-one  hundred  and  fifty-three  feet  to  a  monument marking the

  fiftieth mile point; thence northerly about fifteen hundred and nineteen
  feet to bound one  hundred  and  twelve,  at  the  northwest  corner  of
  Massachusetts,  previously described; thereby including within the state
  of  New York that portion of the former territory of Massachusetts known
  as the district of Boston Corner, situate formerly in the  southwesterly
  corner  of Massachusetts, and westerly of the southwest line of the town
  of Mount Washington, in the county of Berkshire, and ceded to the  state
  of  New  York  upon  certain  conditions by an act of the legislature of
  Massachusetts passed on May fourteen, eighteen hundred and  fifty-three,
  entitled  "An  act  relating to the separation of the district of Boston
  Corner from this commonwealth, and the cession of the same to the  state
  of   New  York."  The  acceptance  by  this  state  of  sovereignty  and
  jurisdiction of such ceded territory which took  effect  January  three,
  eighteen  hundred and fifty-five, the date of the approval of the act of
  congress consenting to such cession, is continued in force,  subject  to
  the retention by the state of Massachusetts of jurisdiction in any cause
  which  arose  or  was  pending  before  the  date  of the issuing of the
  proclamation  provided  in  the  third  section  of  such  act  of   the
  legislature  of  Massachusetts,  provided,  however, that nothing herein
  contained shall be construed  to  affect  existing  titles  to  property
  corporeal  or incorporeal held under grants heretofore made by either of
  said states, nor to affect existing rights which said states, or  either
  of  them,  or  which  the citizens of either of said states may have, by
  grant, letters patent or prescription irrespective of the boundary  line
  hereby  established, it not being the purpose hereof to define, limit or
  interfere with any such right, rights or privileges  whatever  the  same
  may be.