On this territorial dispute, there are three significant maps,based on the survey.
by Korean official Ulleungdo inspector’s team Geography report.
One is Detail map of Ullungdo on 1711.
The other are Detail map of Ulleungdo c.a. during 19century
(takeshima research academy insist those are 1699 and 1702)
The common,prominent feature on those maps are;
1:There are Small Six Adjunctive islands/rocks;
ⅰ)So-called Usando.所謂于山島 in east of Ullugndo
with closer distance, as the most
Ullungdo.with Bamboo fields. The shape is narrow-wide shapes.
Ofcourse we know Lianocurt Rocks is on 90km southeast of Ulluengdo and
it is not narrow-wide sigle island and The Rocks is two pinnacle rocks.
And it is barren rocks without Bamboo fields but those historical map shows
Usando is nearby the Ulluengod with short distance.
ⅱ）In addition, there are small five southerncoast adjunctive rocks.
2:Stanging signs 刻石立標 nearby “the so-called Usando所謂于山島” and
Japanese ship stoage倭舡艙 and 楮田洞.【Check 倭舡艙 on the modern Map】
Which implies Korean Ulleungdo inspector recognized JUKDO-Usando
Stanging signs board built on 1711, to protest Japanese on Ulleungdo nearby Usando-JUKDO(Boussole Rk).
Today, There are the place of name “舡艙”nerarby Jukdo and Gwaneumdo.
3:Description Distance from prominent point to the Sonirbo聖人峯/中峯（Three peaks三峰）
4:Limestone Cave朱土窟.as the landing landmark of Ullungdo from Ujin area(Korean peninsula).
5：Landing point of :舡泊可居
6：Discription about ruins基址、stone tomoe石葬、bamboo field.竹田
7:寛豁 and 大川流出
Ⅰ Circular shape map series
Inspector’s map 1711 by朴昌錫.
This map is very significant because early stage of Detail Ulleungdo maps
are referenced from this map.
See map series of Round-Shape 1 below.
1711.（1834？）鬱陵島圖形 朴昌錫 奎章閣 （North is Right side･South Left）
This map is most important and crutial Ullgnudo detail map by Joseon dynasty official team, because This map is
Basement copy for another many Ullnugdo detail maps
1.This is the first map and basic map drawn Most Prominent Adjunctive island of “So-called Usando, east of Ulleungdo
with smaller size ,single narrow wide shape and they explain the islands have Female Bamboo Field(Hanjing bamboo field)
所謂于山島 海長竹, Ofcourse, Liancour rocks is two rocks, have no Bamboo Field, it locates 90km off southeast of Ullengdo.
2.Also first map drawn five southcoast ghost rocks drawn.
3.Also first map drawn Standing stone caving signboard on Wadari.
刻石立標 船舶所倭舡艙民人可居処 所謂芋田洞民人可居処
Left;Mid 18C 『海東地圖』大東總圖
Usando describes in the east of Ulleungdo with close distance, narrow wide shapes.
Local products also describes in the map.
This is interesting map. Different from above map series, USando is west of Ulleungod with narrow wide shapes.
This image is cutout from the Whole Joseon peninsula map. (Other map here is only Ullungdo detail maps except this)
Ⅱ Pentagram shape：see the consequence from 海東地圖-鬱陵島(Round shape 1:mid 18C)to 朝鮮地圖（Pentaglam:1750-68）
1.Most Prominent adjunctive
2.Five southern coast ghost Rocks also still exist.
3倭舡艙 is disapper from the map.though Standing stone carving board is still exist.
(It may Implies Japanese left from North of Ulleungdo incruding Usando=JUKDO)
Check the position of Usando, checking Kim Jonho’s map on 1834
1.Distance description and Usando Position.
There are no islands describes at the Zero/ 19th or 20th . the position if they mentioned Usando is Liancourt Rocks.
The Usando locates 3枚/18層. Ulluengdo’s area is within 28km by 16km, circumstances 80km, above the map.
2.Check the shape of Usando, and compare Boussole Rock Jukdo.
The Usando shape completely match with Boussole Rock Jukdo.
Compare with Satellite data of Boussole Rock Jukdo and Usando in antique maps.
Just check by yourself !
Cf: There are many simplifised Ulluengdo and Usando map are shown in the Whole Korean peninsula Map,
They wrote Ullunegdo
and only Usando,which most propminent adjunctive
simplifized design from those Ulleungdo and Usando’s detail maps by Korean（See in the map Gallary）,
excludes southern coast five adjunctive rocks. Those designs from the Detail Ulleungdo maps.
Detail maps of Ulluengdo by Ulluengdo inspectors who recognized
Big-Usando(Ulleungdo’s Jukdo) and Small-Usando
(Seommok-the cape connect between Gwaneumdo to Ullungdo) as independent island.
Although Japan’s Takeshima study academy insist that those two map above are publised in 1699 and 1702,which is one of the most oldest Ulluengdo detail maps, I doubt their announce is not correct. .I suggest those two map published on 1780－1832 ,or 1882-1898, because of the reason below;
1. They added another Small Usando- which is completely match on Gwaneumd,
although other previous map never recognized Gwaneumdo as an island,
(Compare Round Shape 1. Pentaglam Shape, and Round shape 2-they have only Usando=Jukdo)
2. Geography Information more rich and inproved.
It is nonsense that above two maps is older than Pak-Chan Ho’s map on 1711. The above two map has rich information of the place of name description thant Pak’s map on 1711. On 1696, Chan han-sang report about Ulluegndo just a geography report but he don’t report any place of name. On 1711 Park Chan ho reported !SO-CALLED Usando and So-called Jodong, So-called and Gong-rock. But the information is less than above two map. So it can assumed above two map is newer than 1711. Above two map descption is match with the report of Ullengdo Inspector around 1780-1832.
3.Standing Carving Stone Sign is not mentioned already.
(Compare Round Shape 1. Pentaglam Shape, and Round shape 2-they have 刻石立標)
4.Japanese ship stoage move to southern part of Big-Usando(Jukdo),where it seems to be today’d Jodong -harbour.
Round Shape 1. Pentaglam Shape,
and Round shape 2 and Lee-Gyuwon’s map on 1882-they wrote
and Map of Chosun 1898 which draw Ship pier at Jodong or Dogong(sontheast.)
5.Southerncoast five small island is also not exist.
(Compare Round Shape 1. Pentaglam Shape, and some Round shape 2 and Map of Chosun series 1898–they have five southcoast rocks and
And some Round-Shape 2 and Lee-Gyuwon’s map on 1882 -they have no southcoast five islands..)
Circular shape PartⅡ（Pentagram⇒Round shape form change/ south five island ⇒five 3 island）
See the consequence from:1834.靑邱圖（Pentagram:1834）>東與（1859-65）＞東與圖（1856-59）
金正浩 thought Usan is another name of Ulleungdo, so he delete Usan (Jukdo) from the map
even though he wrote Usando(Jukdo) on his maps in 1830’s of pentagram shape.(See.大東地誌 1864)
1882.Ulluengdo outline Map, inspector’s map by Lee Gyuwon
1. Most Prominent adjunctive
2. Two design of Seommok島項(Gwaneumdo）
one is the figure view from east, which suggests the island
seems part of the
the other is from west, which suggests “
3. Five small southcoast ghost rock is extinct.
1880-90年代？東京山川 八道地圖 江原道
Round shape1 (Five-distance comments)
Pentagram shape (Mainland of ulungdo,and Usando’s location)
Round shape 2(Southcoast five adjunctive rock
Also simplifized Ulluengdo and Usando’s
figure ,developed design of Round-Shape 2
Detail maps of Ulluegndo.
It is same design with Ulleungdo on
大韓與地図 and 大韓全図
It is apper that USANDO于山島 is not Liancourt Rocks(Takeshima/Dokdo),
but It must be confirmed JUKDO!