Extreme points of U.S. states

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Extreme points are portions of a region which are further north, south, east, or west than any other. This is a list of extreme points in U.S. states.

State Northernmost point Southernmost point Easternmost point Westernmost point
Alabama 35°00′28″N 88°11′34″W / 35.0079°N 88.1929°W / 35.0079; -88.1929
About 6 miles NW of Waterloo, Lauderdale County, in the far NW corner of the state
30°11′39″N 88°03′21″W / 30.1941°N 88.0557°W / 30.1941; -88.0557
Southern tip of Sand Island (on which Sand Island Light sits), SE of Dauphin Island, Mobile County
About 8 miles SE of Fort Mitchell, in Russell County on the Georgia border Southern third of the Mississippi state line, ending near Melvin, Choctaw County
AlaskaA[›] 71°23′15″N 156°28′52″W / 71.38750°N 156.48111°W / 71.38750; -156.48111 (AK-N Point Barrow)50[›]
Point Barrow,[1]
9 miles (14 km) northeast of Barrow
51°13′10″N 179°07′17″W / 51.21944°N 179.12139°W / 51.21944; -179.12139 (AK-S Nitrof Point)
Nitrof Point[2]
on Amatignak Island
in the Aleutian Islands
55°16′55.0″N 129°58′27.1″W / 55.281944°N 129.974194°W / 55.281944; -129.974194 (AK-E Belle Bay)
Belle Bay,[3][4] in Portland Canal
----(by longitude)---

51°57′32″N 179°46′14″E / 51.95889°N 179.77056°E / 51.95889; 179.77056 (AK-E Pochnoi Point)50[›]
Pochnoi Point,[5]
on Semisopochnoi Island
in the Aleutian Islands

52°55′20″N 172°26′35″E / 52.92222°N 172.44306°E / 52.92222; 172.44306 (AK-W Peaked Island)50[›]
Peaked Island,[6] in the Aleutians;
West of Cape Wrangell,[7] Attu Island
----(by longitude)---

51°15′44″N 179°06′31″W / 51.26222°N 179.10861°W / 51.26222; -179.10861 (AK-W Amatignak Island)50[›]
Amatignak Island,[8] in the Aleutians

Arizona 37th parallel
Western two-thirds of the northern border with Utah
Eastern third of the southern border with Mexico, running from west of Nogales to the New Mexico border Eastern border with New Mexico West of San Luis, Yuma County
Arkansas 36°29′59″N 94°21′18″W / 36.4998°N 94.3549°W / 36.4998; -94.3549
NW of Bella Vista, Benton County, along the northern border with Missouri
33°00′15″N 91°09′58″W / 33.0041°N 91.1661°W / 33.0041; -91.1661
SE corner of state, SE of Eudora, Chicot County; on an unnamed peninsula on the west side of the Mississippi River
Near Huffman, Mississippi County NW corner of the state on Highway 43 NNW of Maysville at Corner Stone tri-state monument (MO-AR-OK) across road from store on Missouri side.
California 42nd parallel
Northern border with Oregon
Border Field State Park in Imperial Beach, San Diego County About three miles south of Parker Dam, San Bernardino County (directly across from Buckskin Mountain State Park, AZ) Cape Mendocino, Humboldt County. Westernmost island: Sugarloaf Island, Humboldt County
State Northernmost point Southernmost point Easternmost point Westernmost point
Colorado 41st parallel
Northern border with Wyoming
36.99250°N (approximately)
Southern border with New Mexico, near Chromo
Eastern border with Kansas and Nebraska Northern two-thirds of western border with Utah[9]
Connecticut 42°03′02″N 73°25′57″W / 42.0506°N 73.4325°W / 42.0506; -73.4325
North of Salisbury, Litchfield County, along Massachusetts border
40°59′13″N 73°39′26″W / 40.9870°N 73.6573°W / 40.9870; -73.6573
Byram Point, SW of Greenwich, Fairfield County
CT-MA-RI tri-state point About 1 mile NW of I-684, Fairfield County (near the intersection of High Hill Road and King Street)
Delaware 39°50′22″N 75°34′11″W / 39.8395°N 75.5698°W / 39.8395; -75.5698
Pennsylvania border, north of Wilmington
38°27′04″N 75°11′10″W / 38.4510°N 75.1860°W / 38.4510; -75.1860
SE of Selbyville, Sussex County, along Maryland border
On State Route 1, between Fenwick Island and South Bethany, Sussex County On the border with Maryland, 1.5 miles south of the MD-DE-PA tri-point, see Arc Line in the article The Wedge (border)
Florida 31°00′04″N 85°09′52″W / 31.0010°N 85.1645°W / 31.0010; -85.1645
North of Malone, Jackson County, along border with Alabama
24°31′16″N 81°57′49″W / 24.5211°N 81.9637°W / 24.5211; -81.9637 (FL-S1)48[›]
Ballast Key
----(on mainland)----


25°6′58.07″N 81°5′8.15″W / 25.1161306°N 81.0855972°W / 25.1161306; -81.0855972 (FL-S2)
Cape Sable
10 ¼ miles WSW of Flamingo Visitor Center
Everglades National Park, Flamingo

26°46′24.56″N 80°1′51.29″W / 26.7734889°N 80.0309139°W / 26.7734889; -80.0309139 (FL-E)
Palm Beach Shores, north side of Lake Worth Inlet, Palm Beach County
30°51′55.11″N 87°38′04.67″W / 30.8653083°N 87.6346306°W / 30.8653083; -87.6346306 (FL-W)
On the Perdido River about 12 miles WSW of Walnut Hill, Escambia County
Georgia 35°00′03″N 83°06′31″W / 35.0007°N 83.1087°W / 35.0007; -83.1087
NE corner of state, NE of Clayton, Rabun County
30°21′22″N 82°03′56″W / 30.3561°N 82.0656°W / 30.3561; -82.0656
On the St. Marys River, S of St. George, Charlton County
Tybee Island, Chatham County NW corner of the state, about 7 miles south of Jasper, Tennessee
State Northernmost point Southernmost point Easternmost point Westernmost point
Hawaii Kure Island Ka Lae (south cape), Hawaii County50[›] Cape Kumukahi, Hawaii County Kure Island
Idaho 49th parallel
Northern border with Canada
42nd parallel
Southern border with Utah and Nevada
Eastern border with Wyoming On the Snake River, across from Huntington, Oregon
Illinois NW corner of the state, near East Dubuque, Jo Daviess County Fort Defiance State Park, Alexander County 38°46′57.56″N 87°29′50.19″W / 38.7826556°N 87.4972750°W / 38.7826556; -87.4972750 (IL-E)
Land: In Lawrence County, along the Wabash River
42°29′37.00″N 87°1′15.00″W / 42.4936111°N 87.0208333°W / 42.4936111; -87.0208333 (IL-E)
Water: At the junction of border with Michigan and Wisconsin, almost due east of Winthrop Harbor, Illinois[10]
Lock & Dam No. 20 on the Mississippi River, near Meyer, Adams County
Indiana 41°45′37.33″N 86°0′0″W / 41.7603694°N 86.00000°W / 41.7603694; -86.00000 (IN-N)
Northern border with Illinois and Michigan
37°46′23″N 87°57′16″W / 37.77306°N 87.95444°W / 37.77306; -87.95444 (IN-S)
On the Ohio River, opposite Uniontown, Kentucky
38°52′31″N 84°47′8.7″W / 38.87528°N 84.785750°W / 38.87528; -84.785750 (IN-E)
On the Ohio River, about 2 miles NE of Patriot, Switzerland County
37°54′9″N 88°5′50.3″W / 37.90250°N 88.097306°W / 37.90250; -88.097306 (IN-W)
On the Wabash River, opposite New Haven, Illinois
Iowa Northern border with Minnesota and South Dakota Old river channel across the Des Moines River, near Keokuk, Lee County On the Mississippi River, between Clinton and Sabula On the Big Sioux River, about 1 mile west of Westfield, Plymouth County
State Northernmost point Southernmost point Easternmost point Westernmost point
Kansas Northern border with Nebraska Southern border with Oklahoma On the Missouri River, within Kansas City, Kansas, at the GM Fairfax Assembly Plant, formerly the Fairfax Airport Western border with Colorado
Kentucky 39°08′36″N 84°44′52″W / 39.1434°N 84.7478°W / 39.1434; -84.7478
On the Ohio River, NW of Hebron, Boone County
36°29′50″N 88°03′27″W / 36.4972°N 88.0575°W / 36.4972; -88.0575
On Kentucky Lake at the Tennessee border, about 10 miles SE of New Concord, Calloway County
On the Tug Fork River at the tripoint with Virginia and West Virginia, Pike County On the Mississippi River, due south of New Madrid, Missouri, see Kentucky Bend
Louisiana 33°01′11″N 93°55′17″W / 33.0196°N 93.9215°W / 33.0196; -93.9215
Along Arkansas border, NW of Ida, Caddo Parish
28°55′31″N 89°25′19″W / 28.9254°N 89.4220°W / 28.9254; -89.4220
At the mouth of the Mississippi River, about 14 miles south of Venice, Plaquemines Parish
Chandeleur Islands On the Toledo Bend Reservoir, about 5 mi. NW of Logansport, De Soto Parish
Maine 47°27′35″N 69°13′29″W / 47.4597°N 69.2246°W / 47.4597; -69.2246
Estcourt Station, Aroostook County, opposite Pohenegamook, Quebec
42°58′29″N 70°35′57″W / 42.9747°N 70.5991°W / 42.9747; -70.599150[›]
Cedar Island Ledge, York County
Quoddy Head Intersection with New Hampshire and Quebec, Oxford County
Maryland 39°43′23″N 78°43′33″W / 39.7230°N 78.7258°W / 39.7230; -78.7258
Along the border with Pennsylvania, NE of Cumberland, Allegany County
37°54′44″N 75°53′01″W / 37.9121°N 75.8837°W / 37.9121; -75.8837
Watkins Point, SW of Crisfield, Somerset County
On the Atlantic Ocean at the Maryland-Delaware state line SW corner of the Maryland Panhandle, about 10 miles south of Gnegy Church, Garrett County
State Northernmost point Southernmost point Easternmost point Westernmost point
Massachusetts About 1 mile NW of Salisbury Plains, in Salisbury, Essex County About 4 miles WSW of Siasconset, Nantucket Island Nauset Beach, Cape Cod National Seashore, in Orleans/Chatham, Barnstable County Near Alander Mountain, in Mount Washington, Berkshire County
Michigan 48°18′21″N 88°22′11″W / 48.30583°N 88.36972°W / 48.30583; -88.36972 (MI-N)
Northernmost point of border with Ontario, almost due north of Passage Islands and northwest of the Gull Islands
41°41′46″N 84°48′22″W / 41.69611°N 84.80611°W / 41.69611; -84.80611 (MI-S)
Intersection of Michigan, Indiana, and Ohio borders, southwest of Camden, Hillsdale County
43°35′28″N 82°7′22″W / 43.59111°N 82.12278°W / 43.59111; -82.12278 (MI-E)
Easternmost point of border with Ontario, northeast of Port Sanilac, Michigan
46°33′58″N 90°25′7″W / 46.56611°N 90.41861°W / 46.56611; -90.41861 (MI-W)
Mouth of the Montreal River along Wisconsin state line, Gogebic County
Minnesota Angle Inlet, Lake of the Woods County48[›] Southern border with Iowa, within 1 mile W of US 65 48°0′51.27″N 89°28′59.94″W / 48.0142417°N 89.4833167°W / 48.0142417; -89.4833167 (MN-E)
At junction of border with Michigan and Ontario, northeast of Pigeon Point, Cook County
Near St. Vincent, Minnesota
Mississippi Central half of the northern border with Tennessee About 2 miles SE of Ansley, Hancock County Near Eastport, Tishomingo County On the Mississippi River, about 7 miles west of Pinckneyville, Wilkinson County
Missouri On the Des Moines River, immediately north of the Battle of Athens State Historic Site, Clark County Southern border of the Missouri Bootheel On the Mississippi River, about 2 miles SE of Cairo, Illinois On the Missouri River, immediately south of the intersection of Missouri, Iowa, and Nebraska state lines, Atchison County
State Northernmost point Southernmost point Easternmost point Westernmost point
Montana 49th parallel
Northern border with Canada
In the Beaverhead National Forest, about 25 miles SW of Lima (as the crow flies), Beaverhead County Eastern border with North and South Dakota "Straight" portion of the western border with Idaho, extending from the Canadian border to about 8 miles SW of Heron, Sanders County
Nebraska 43rd parallel
"Straight" portion of the northern border with South Dakota, from the west bank of the Missouri River to the Wyoming state line
Southern border with Kansas SE corner of the state, in the Iowa Indian Reservation, Richardson County Western border of the state with Wyoming
Nevada 42nd parallel
Northern border with Idaho and Oregon
On the Colorado River, at the intersection with Arizona and California Eastern border with Arizona and Utah Western border with California north of Lake Tahoe
New Hampshire About 100 meters WNW of the intersection with Maine and Quebec About 1 mile NNE of Dracut, Massachusetts Inhabited: Star Island, Isles of Shoals; Uninhabited: Anderson's Ledge, Isles of Shoals (both are part of the Town of Rye.) On the Connecticut River, opposite Brattleboro, Vermont. (The entire river is part of New Hampshire.)
New Jersey 41.36 North latitude
On the Delaware River, opposite Port Jervis, New York
38.93 North latitude
Cape May Point State Park, Cape May County
73.90 West longitude
On the Hudson River in Alpine, Bergen County
75.56 West longitude
In the Killcohook National Wildlife Refuge. NJ and Delaware share a short land border in this area.
State Northernmost point Southernmost point Easternmost point Westernmost point
New Mexico Northern border with Colorado Southern border of New Mexico's "bootheel" with Mexico, Hidalgo County Eastern border with Oklahoma (not Texas) Western border with Arizona
New York 45.01 North latitude
In the Saint Lawrence River just north of Robert Moses State Park and Barnhart Island, St. Lawrence County
40.50 North latitude
Southern tip of Staten Island, Richmond County at Tottenville, Staten Island
71.86 West longitude
Montauk Point, Suffolk County
79.76 West longitude
Western (not southern) border with Pennsylvania, at Twentymile Creek
North Carolina Northern border both Virginia and Tennessee Cape Fear, Brunswick County Rodanthe, Dare County Hothouse Township, Cherokee County
North Dakota 49th parallel
Northern border with Canada
45° 56' 07" N
Southern border with South Dakota[11]
46°05′02″N 96°33′16″W / 46.083977°N 96.55455°W / 46.083977; -96.55455
On the Bois de Sioux River, about 3 miles NE of Fairmount, Richland County
104° 03' 2.7" West Longitude
Western border with Montana[11]
Ohio 42°19′37.59″N 80°31′11.43″W / 42.3271083°N 80.5198417°W / 42.3271083; -80.5198417 (OH-N)
At junction of border with Erie and Pennsylvania[12]
in Conneaut, Ashtabula County
38°24′11.76″N 82°33′3.78″W / 38.4032667°N 82.5510500°W / 38.4032667; -82.5510500 (OH-S)[13]
In Burlington, Lawrence County
40°38′19.68″N 80°31′8.37″W / 40.6388000°N 80.5189917°W / 40.6388000; -80.5189917 (OH-E)
At Pennsylvania border[14]
39°6′19.73″N 84°49′12.56″W / 39.1054806°N 84.8201556°W / 39.1054806; -84.8201556 (OH-W)
At Indiana border[15]
State Northernmost point Southernmost point Easternmost point Westernmost point
Oklahoma 37th parallel
Northern border with Kansas
33°36′56″N 94°31′34″W / 33.61556°N 94.52611°W / 33.61556; -94.52611 (OK-southernmost point, McCurtain County)
At the southern (Texas) shore of Gunn Lake on the Red River, just above the intersection of the Arkansas and Texas state lines, McCurtain County
35°23′39″N 94°25′52″W / 35.39417°N 94.43111°W / 35.39417; -94.43111 (OK-easternmost point, Sequoyah County)
Extreme southeastern Sequoyah County in middle of Arkansas River below Moffett, bordering Fort Smith, Arkansas, on its northwest side
103° West longitude
Western border with New Mexico, also known as the Cimarron Meridian
Oregon 46°17′30.19″N 124°1′30.03″W / 46.2917194°N 124.0250083°W / 46.2917194; -124.0250083 (OR-N)
Sand Island, Clatsop County[16]
42°0′0.00″N 124°12′45.45″W / 42.0000000°N 124.2126250°W / 42.0000000; -124.2126250 (OR-SW) to
42°0′0.00″N 117°1′34.39″W / 42.0000000°N 117.0262194°W / 42.0000000; -117.0262194 (OR-SE)[17]
Southern border with California and Nevada (marked by the 42nd parallel) from the Pacific Ocean to Idaho
45°36′41.33″N 116°27′49.54″W / 45.6114806°N 116.4637611°W / 45.6114806; -116.4637611 (OR-E)
On the Snake River, Hells Canyon National Recreation Area, about 10 miles (as the crow flies) west of Lucile, Idaho (longitude 116.46 West)[18]
42°50′10.50″N 124°33′54.84″W / 42.8362500°N 124.5652333°W / 42.8362500; -124.5652333 (OR-W)
Cape Blanco, Curry County (longitude 124.57 West)[19] Westernmost islands: Orford Reef, Curry County
Pennsylvania 42°29′59.45″N 79°45′42.74″W / 42.4998472°N 79.7618722°W / 42.4998472; -79.7618722 (PA-N)
At junction of border with New York and Ontario, northeast of North East, Pennsylvania
39°43′11″N 76°59′27″W / 39.7198°N 76.9909°W / 39.7198; -76.9909
Along border with Maryland, south of Hanover, York County
Matamoras, Pennsylvania Western border with Ohio and West Virginia
Rhode Island NE corner of the state, in Cumberland, Rhode Island Southern tip of Block Island SE corner of the state; intersection of Massachusetts state line and Rhode Island Sound, near Quicksand Pond Napatree Point
South Carolina 35°12′55.44″N 82°23′25.29″W / 35.2154000°N 82.3903583°W / 35.2154000; -82.3903583 (SC-N)
About 10 miles south of Flat Rock, North Carolina
32°01′17.79″N 80°53′21.35″W / 32.0216083°N 80.8892639°W / 32.0216083; -80.8892639 (SC-S)
Cockspur Island, Jasper County near Georgia coast (20 miles south of Beaufort)
Intersection of the North Carolina border and the Atlantic Ocean near Myrtle Beach Oconee County, near Georgia at Chattooga River at the junctions of Tugaloo and Savannah Rivers nearby Whitewater Falls
State Northernmost point Southernmost point Easternmost point Westernmost point
South Dakota Northern border with North Dakota Dakota Dunes, South Dakota, slightly WSW of the intersection of the Big Sioux and Missouri Rivers, Union County On the Big Sioux River, 1 km Southeast of Hudson, South Dakota, Lincoln County Western border with Wyoming[20]
Tennessee In land between the lakes along the Kentucky border in Stewart county Tn along the Georgia border, in the city of East Ridge, Tennessee NE corner of the state SW corner of the state
Texas Northern border with the Oklahoma Panhandle About 5 miles SE of Brownsville, on the Rio Grande On the Sabine River, SW of Burr Ferry, Louisiana 0.6 miles west of the Rio Grande, near Borderland, El Paso County
Utah 42nd parallel
Northern border with Idaho
Southern border with Arizona Southern third of eastern border with Colorado[9] Western border with Nevada
Vermont 45th parallel (roughly)
Northern border with Quebec, mostly 1 km to 2 km north of the parallel. The northernmost segment of the border is in the town of Highgate, Vermont
On the Connecticut River, at the intersection of Vermont, Massachusetts, and New Hampshire On the Connecticut River, about 1 mile east of Beecher Falls, Essex County On the East Bay of Lake Champlain, about 2 miles north of Whitehall, New York
State Northernmost point Southernmost point Easternmost point Westernmost point
Virginia About 3 miles NW of Unger, West Virginia 1/2 mile north of Whitetown, North Carolina Intersection of Maryland-Virginia (Eastern Shore ) State line and Atlantic Ocean, Assateague Island National Seashore, Accomack County About 2 miles E of Middlesboro, Kentucky, in Cumberland Gap National Historical Park
Washington 49th parallel
Northern border with Canada
45.55 North latitude
Reed Island, Clark County
116.92 West longitude
Intersection of Washington, Oregon and Idaho state lines
124.77 West longitude
Bodelteh Islands, Clallam County48[›]
----(On mainland)----
Cape Alava, Clallam County
West Virginia Intersection of West Virginia-Pennsylvania state line and the Ohio River About 1 mile NW of Amonate, Virginia Intersection of West Virginia-Virginia state line and the Potomac River On the Tug Fork River, about 5 miles NNW of Louisa, Kentucky
Wisconsin 47°18′36″N 90°39′16″W / 47.31000°N 90.65444°W / 47.31000; -90.65444 (WI-N)
Northernmost point of border with Minnesota, north of Apostle Islands
Intersection of border with Illinois and Lake Michigan 45°14′11″N 86°14′59″W / 45.23639°N 86.24972°W / 45.23639; -86.24972 (WI-E)
Easternmost point of border with Michigan, northwest of North Manitou Island
On the St. Croix River, 1/4 mile south of Polk-Burnett county line
Wyoming 45th parallel
Northern border with Montana
41st parallel
Southern border with Colorado and Utah
Eastern border with Nebraska[20] Western border with Idaho and Utah
State / Territory Northernmost point Southernmost point Easternmost point Westernmost point
American Samoa 11°03′20″S 171°04′40″W / 11.05556°S 171.07778°W / -11.05556; -171.07778 (AS-N)
Swains Island
Steps point, Tutuila Island 14°32′48″S 168°09′07″W / 14.54667°S 168.15194°W / -14.54667; -168.15194 (AS-E)
Rose Atoll
Cape Taputapu, Tutuila Island
District of Columbia Near the intersection of E Beach Dr NW and Verbena St NW Western end of Oxon Hill Farm Intersection of Eastern Avenue NE and Southern Avenue NE Western side of C&O Canal National Historical Park, about 2/3 of the way up the island
Federated States of Micronesia (Independent Associated State since 1986) Ulithi Atoll Kapingamarangi Atoll Kosrae Island Ngulu Atoll
Guam Ritidian Point Aga Point (mainland), Cocos Island (offshore) Pati point Udall Point (formerly Orote Point)
Guantanamo Bay (Naval Base) Eastern 2/3 of the northern border with the rest of the bay Winward Point 75º05' West longitude
Eastern border
Southern 1/3 of Guantanamo Bay's western border (a longitude line west of Leeward Point Field)
Northern Mariana Islands Northern tip of Farallon de Pajaros Southern tip of Rota island Eastern tip of Farallon de Medinilla Western tip of Farallon de Pajaros
Puerto Rico Area of land near San Antonio Southern tip of Isla Caja de Muertos Eastern tip of Isla Culebrita Western tip of Isla Mona
U.S. Virgin Islands Small island off the north coast of Hans Lollik Island Southwest Cape, St. Croix island Udall Point (AKA East Point), St. Croix Island Western tip of Savana Island
Territory Northernmost point Southernmost point Easternmost point Westernmost point

Footnotes[edit]

^ A: The State of Alaska uniquely crosses or spans the 180 degree East-West Meridian, and The State of Alaska's territory includes many islands and in several areas "water". This uniquely results in (2) two or (3) three different definitions of East-, South- and West-ernmost points.
^ 48: Also the extreme point in the 48 contiguous states
^ 50: Also the extreme point in all 50 states

See also[edit]

References[edit]

  1. ^ "Point Barrow". Geographic Names Information System. United States Geological Survey. Retrieved 2009-05-03. 
  2. ^ "Nitrof Point". Geographic Names Information System. United States Geological Survey. Retrieved 2009-05-03. 
  3. ^ "Belle Bay". Geographic Names Information System. United States Geological Survey. Retrieved 2009-05-03. 
  4. ^ "Geographical Positions along the International Boundary, NAD83, O. Portland Canal (Alaska/British Columbia), Turning Point 16". International Boundary Commission. 
  5. ^ "Pochnoi Point". Geographic Names Information System. United States Geological Survey. Retrieved 2009-05-03. 
  6. ^ "Peaked Island". Geographic Names Information System. United States Geological Survey. Retrieved 2009-05-03. 
  7. ^ "Cape Wrangell". Geographic Names Information System. United States Geological Survey. Retrieved 2009-05-03. 52°55′24″N 172°26′30″E / 52.92333°N 172.44167°E / 52.92333; 172.44167 (Cape Wrangell)
  8. ^ "Amatignak Island". Geographic Names Information System. United States Geological Survey. Retrieved 2009-05-03. 
  9. ^ a b "Why does the eastern border of Utah have a kink in it?". Utah Geological Survey. Retrieved 2014-01-31.
  10. ^ http://www.legislature.mi.gov/(S(crclotvx1nq5gp55re3x4b3o))/documents/mcl/pdf/mcl-2-201.pdf
  11. ^ a b https://www.dmr.nd.gov/ndgs/ndnotes/Boundaries/Boundaries.asp
  12. ^ Ohio Northernmost manually plotted in Google.
  13. ^ Ohio-Southernmost manually plotted in Google Earth/Maps
  14. ^ Ohio Easternmost manually plotted in Google.
  15. ^ Ohio Westernmost manually plotted in Google.
  16. ^ Oregon Northernmost point manually plotted in GoogleMaps
  17. ^ Western and eastern endpoint of Oregon's Southern border manually plotted in GoogleMaps
  18. ^ Oregon Easternmost point manually plotted in GoogleMaps
  19. ^ Oregon Westernmost point manually plotted in GoogleMaps
  20. ^ a b Hubbard, Bill. "American Boundaries: The Nation, the States, the Rectangular Survey". University of Chicago Press, 2008, p. 172.

"Geographical Positions along the International Boundary: NAD 83 coordinates, Boundary Segments". International Boundary Commission.