Question: How many areas are in the place that is a national historic landmark , outside the city of New York , in Ontario County ?

text: List of National Historic Landmarks in New York
Current National Historic Landmarks outside New York City
Map all coordinates using : OpenStreetMap Download coordinates as : KML · GPX Key National Historic Landmark † National Historic Landmark District ∞ National Memorial * National Historic Site National Monument National Historical Park Delisted landmark
This is a list of National Historic Landmarks and comparable other historic sites designated by the U.S. government in the U.S. state of New York. The United States National Historic Landmark (NHL) program operates under the auspices of the National Park Service, and recognizes buildings, structures, objects, sites and districts of resources according to a list of criteria of national significance. There are 262 NHLs in New York state, which is more than 10 percent of all the NHLs nationwide, and the most of any state. The National Park Service also has listed 20 National Monuments, National Historic Sites, National Memorials, and other sites as being historic landmarks of national importance, of which 7 are also designated NHLs. All of these historic landmarks are covered in this list. There are 139 NHLs in upstate New York, 13 on Long Island, and 114 within New York City (NYC). Three counties have ten or more NHLs: New York County (Manhattan) has 86; Westchester County, just north of NYC, has 18; and Erie County in western New York has 10. Twelve other counties have five to nine NHLs, eight have three or four, 27 counties have one or two, and the remaining twelve of the state's 62 counties have none. The first New York NHLs were eight designated on October 9, 1960; the latest was designated on March 13, 2013. The NHLs and other landmarks outside NYC are listed below; the NHLs in NYC are in this companion article. Seven NHL sites are among the 20 National Park System historic areas in New York state. The other 13 National Park Service areas are also historic landmark sites of national importance, but are already protected by Federal ownership and administration, so NHL designation is unnecessary.
Landmark name Date designated Location County Description
1 Adams Power Plant Transformer House May 4 , 1983 ( # 75001212 ) Niagara Falls 43°04′54″N 79°02′34″W / 43.081764°N 79.042836°W / 43.081764 ; -79.042836 ( Adams Power Plant Transformer House ) Niagara Transformer house of the first large-scale , alternating current electric generating plant in the world ; tapped power of Niagara Falls via a 7,500 foot ( 2,286 m ) tail-race tunnel
2 Adirondack Forest Preserve May 23 , 1963 ( # 66000891 ) Northeastern Upstate New York 43°47′13″N 74°29′06″W / 43.786958°N 74.485016°W / 43.786958 ; -74.485016 ( Adirondack Forest Preserve ) All of Essex and Hamilton and parts of Clinton , Franklin , Fulton , Herkimer , Lewis , Oneida , St. Lawrence , Saratoga , Warren , and Washington Largest publicly protected area in the lower 48 United States ; largest National Historic Landmark ; largest and one of earliest areas protected by any state ; established in 1885 ; later protected in forever wild section of New York state constitution
3 Susan B. Anthony House May 23 , 1965 ( # 66000528 ) Rochester 43°09′12″N 77°37′33″W / 43.153336°N 77.625747°W / 43.153336 ; -77.625747 ( Susan B. Anthony House ) Monroe Home of Susan B. Anthony , prominent 19th century women 's rights activist
4 Armour-Stiner House December 8 , 1976 ( # 75001238 ) Irvington 41°01′51″N 73°52′13″W / 41.030803°N 73.870415°W / 41.030803 ; -73.870415 ( Armour-Stiner House ) Westchester Octagonal implementation of architectural ideas of Orson Squire Fowler
5 Bennington Battlefield January 20 , 1961 ( # 66000564 ) Walloomsac 42°56′19″N 73°18′16″W / 42.938658°N 73.304418°W / 42.938658 ; -73.304418 ( Bennington Battlefield ) Rensselaer Site of Battle of Bennington , where the American defeat of a British foraging party of dragoons helped assure the Continental Army 's pivotal victory at Saratoga
6 Boston Post Road Historic District August 30 , 1993 ( # 82001275 ) Rye 40°57′31″N 73°42′07″W / 40.958487°N 73.701922°W / 40.958487 ; -73.701922 ( Boston Post Road Historic District ) Westchester Three mansions and associated grounds with pre-contact archaeological significance ; 5 contributing properties include the 1838 Peter Augustus Jay House and surrounding Jay Property , childhood home of Founding Father John Jay , Lounsberry , Whitby Castle , the private Jay Cemetery , final resting place of John Jay and his descendants , and Marshlands Conservancy , a nature preserve running from Boston Post Road down to the Long Island Sound , an area essentially unchanged for 200 years
7 Boughton Hill ( Gannagaro ) July 19 , 1964 ( # 66000559 ) Victor 42°57′40″N 77°24′46″W / 42.961157°N 77.412736°W / 42.961157 ; -77.412736 ( Boughton Hill ( Gannagaro ) ) Ontario The site of a 17th-century Seneca village known as the Town of Peace and birthplace of the Iroquois Confederacy
8 Bronck House December 24 , 1967 ( # 67000012 ) Coxsackie 42°20′31″N 73°50′55″W / 42.342052°N 73.848724°W / 42.342052 ; -73.848724 ( Bronck House ) Greene Oldest structure in upstate New York ; excellent example of Dutch colonial architecture
9 Dr. Oliver Bronson House and Estate July 31 , 2003 ( # 03001035 ) Hudson 42°14′35″N 73°47′09″W / 42.243119°N 73.785764°W / 42.243119 ; -73.785764 ( Dr. Oliver Bronson House and Estate ) Columbia Early example of the Hudson River bracketed style of Alexander Jackson Davis
10 John Brown Farm and Gravesite August 5 , 1998 ( # 72000840 ) Lake Placid 44°15′20″N 73°58′15″W / 44.255574°N 73.970969°W / 44.255574 ; -73.970969 ( John Brown Farm and Gravesite ) Essex Home and final resting place of famous abolitionist John Brown , executed for his raid on Harper 's Ferry Armory before the Civil War
11 Buffalo and Erie County Historic Society Building February 27 , 1987 ( # 80002606 ) Buffalo 42°56′08″N 78°52′36″W / 42.935556°N 78.876667°W / 42.935556 ; -78.876667 ( Buffalo and Erie County Historic Society Building ) Erie Parthenon -evoking legacy of the 1901 Pan-American Exposition ; turned over to historical society afterwards
12 Buffalo State Hospital June 24 , 1986 ( # 86003557 ) Buffalo 42°55′46″N 78°52′56″W / 42.929382°N 78.882147°W / 42.929382 ; -78.882147 ( Buffalo State Hospital ) Erie Architect H. H. Richardson 's largest commission ; advent of his characteristic Richardsonian Romanesque style ; used to care for the mentally ill ; grounds designed by Frederick Law Olmsted
13 John Burroughs ' Riverby Study October 18 , 1968 ( # 68000035 ) West Park 41°48′00″N 73°57′32″W / 41.8°N 73.958889°W / 41.8 ; -73.958889 ( John Burroughs ' Riverby Study ) Ulster Small frame structure built in 1881 by naturalist John Burroughs as a writing retreat ; in this study , that looks east over the Hudson River , Burroughs wrote Fresh Fields ( 1884 ) , Signs and Seasons ( 1886 ) , Indoor Studies ( 1889 ) , and Riverby ( 1894 )
14 Camp Pine Knot August 18 , 2004 ( # 86002934 ) Raquette Lake 43°49′17″N 74°37′34″W / 43.821325°N 74.626197°W / 43.821325 ; -74.626197 ( Camp Pine Knot ) Hamilton First of the Adirondack Great Camps ; designed and built by William West Durant
15 Camp Uncas October 6 , 2008 ( # 86002937 ) Raquette Lake 43°44′38″N 74°38′53″W / 43.743889°N 74.648056°W / 43.743889 ; -74.648056 ( Camp Uncas ) Hamilton Second of the Adirondack Great Camps ; designed and built by William West Durant
16 Canfield Casino and Congress Park February 27 , 1987 ( # 87000904 ) Saratoga Springs 43°04′45″N 73°46′58″W / 43.079076°N 73.782855°W / 43.079076 ; -73.782855 ( Canfield Casino and Congress Park ) Saratoga Former resort and casino ; now houses the Saratoga Springs History Museum
17 Chautauqua Historic District June 29 , 1989 ( # 73001168 ) Chautauqua 42°12′35″N 79°28′01″W / 42.209722°N 79.466944°W / 42.209722 ; -79.466944 ( Chautauqua Historic District ) Chautauqua Adult education and summer retreat ; focuses on programs related to arts , education , religion and recreation ; well-preserved 19th century architecture
18 Christeen ( sloop ) December 4 , 1991 ( # 91002060 ) Oyster Bay 40°52′40″N 73°32′23″W / 40.87774°N 73.539702°W / 40.87774 ; -73.539702 ( Christeen ( sloop ) ) Nassau Oldest oyster sloop in the U.S
19 Frederick E. Church House June 22 , 1965 ( # 66000509 ) Hudson 42°13′03″N 73°49′07″W / 42.2175°N 73.818611°W / 42.2175 ; -73.818611 ( Frederick E. Church House ) Columbia Calvert Vaux -designed home of Hudson River School painter Frederic Edwin Church ; also known as Olana
20 Clermont November 28 , 1972 ( # 71000535 ) Clermont 42°05′09″N 73°55′09″W / 42.085922°N 73.919073°W / 42.085922 ; -73.919073 ( Clermont ) Columbia Ancestral home of the Livingston family , prominent in colonial and early New York ; known also as Clermont Manor