Ubayama Shell Mound Park - Ichikawa

It is a park in the open field, and there is also a toilet.

It's just a large park with a lawn. There is nothing else to play with It may be comfortable to relax. Everyone is walking and jogging with dogs.

It's a pity that the parking lot is gone, and it's scary because there are no street lights at night, but it's a plain during the day, so it's a good view, and it's safe to know where small children are at a glance. It's about 400m around, so it's ideal for running. I wonder if the toilet will be clean as it is being renovated.

There is a parking lot, but since the road to access is a relatively narrow road in the residential area, I think that attention is necessary. In the case of walking, although it was not displayed in the navigation of Google Map (it is listed when enlarging the map), there is a staircase that climbs up to the park from near "Lawyer's hot water", it is narrow and steep, but without detouring I was able to move.

Live nearby There is nothing, but it is a park that is on a hill, spacious and comfortable. Some people have a leisure seat and have a picnic, but that's in the way! Not so much. (Because it is wide) There are 3 Pokemon GO Pokestops in the park and a gym, so you can spend hours with Pokemon lovers (laughs) You can also enjoy nature by picking up a pine cone, climbing a large tree, or passing through a tunnel made of wood.

There are no cherry blossoms in spring and no autumn leaves in autumn. That's why it doesn't get crowded (laughs) It's hard to get there because the parking lot is gone. But it's a park that likes big trees and winding paths.

It is located on a hill up a hill, about a 10-minute walk from Funabashi Hounen Station. The area is a fairly large park with 2.5 hectares. The park has toilets, drinking fountains and benches. In addition, there is a parking lot for 5 cars, but there was a notice board that it will be closed on March 31, 1939. A bulletin board was set up in the park at the site where the excavation was conducted, and is explained as follows. [Country designated historic site Ubayama Shell Mound is located at the west end of the Shimousa Plateau, one of the tree-shaped valleys invading eastward from the Oshibashi Valley, where the Kashiwa River flows. This shell mound has a concave top in the center and a bank-like terrain except the south. The shell layer is located on this embankment and is C-shaped, so it is called a horseshoe shell mound. The shell scale measures 130m east and west and 120m north and south. As for the type of shellfish, more than 30 types of shellfish such as clams, salbows, shiofuki, high oysters, and oysters were collected. In the investigation of this shell mound, the excavation by Mr. Yasugi Saburo in January 1868 was recorded as the first record, and a number of investigations were carried out until May 1952. As a result, 39 pit dwellings mainly belonging to the middle Jomon period and 143 human bones were found. What is particularly noteworthy about this shell mound is that, for the first time in Japan, the Jomon period home was a pit dwelling with a furnace and pillars. In addition, five human skeletons were found on the floor of one pit dwelling, which was an important source for considering personnel and family issues. In addition, 143 human bones appeared in Japan, the third largest in Japan, and contributed greatly to studying the traits of the Jomon people. As a result, it was designated as a national historic site and the entire area was made public. February, 1982, Ichikawa City Board of Education] ["Point A": On May 9, 2015, an excursion of the Tokyo Anthropological Society was held at Ubayama Kaizuka, and excavation was performed. At the time, the excavation was interrupted up to the shell layer, but when the anthropology classroom dug down the soil layer under the shell layer by about 30 cm, a furnace and a human skeleton were discovered, attracting people's attention. Was. Therefore, a continuous survey was conducted as an anthropology class project at Tokyo Imperial University (currently the University of Tokyo) .From May 13 to June 28, Mr. Kouji Miyasaka was discovered as the person in charge, and We conducted a period survey from August 27 to September 27. As a result of the investigation, 14 houses were found, 9 human bones (including 2 children), 2 pottery coffins (child or fetus), and 3 small pits. Most of the dwellings were of a pit type in which the loam layer was dug, and all of the pit dwellings were first covered with black-brown soil, and a lenticular shell layer was found in a hollow that could not be completely filled. Human bones were found above the dwellings, in the soil layer below the shell and above the shell. These dwellings, human bones and shells are thought to be from the Kasori E I-II period (approximately 4,500 years ago) in the late middle Jomon period. What was noted in this study was that the Jomon period dwellings were thought to be dug pit dwellings, but this estimate was based on solid evidence of pit dwellings with furnaces and columns. It is proof. ] [Point B] July 21, 1926 (Taisho 15): A visit to Ubayama Kaizuka was planned as one of the hospitality events for the arrival of Prince Gustaf Adolf of Sweden (former king and deceased) in Japan on July 21, 1926. A new point B was set up approximately 40m northwest of point A. The excavation survey was conducted by Ichiro Yawata of Tokyo Imperial University (currently the University of Tokyo) and started on August 27, the same as the second survey at Site A, and continued until September 21. On September 15, the Crown Prince of Sweden came to the site as scheduled and toured and excavated. As a result of the investigation, five pit dwellings (two of which were completely excavated), two small pits, and two human bones were found. The excavated pit dwellings are common in that they have four pillars in a rounded square plan, a furnace with pottery buried in them, and a pot in the south wall. The shell layer was flat and widely deposited, and lenticular deposits were found on the soil covering the pit dwellings. It is said that Kasori E pottery (about 4,500 years ago) from the middle of the Jomon period was excavated from the shell layer, and Atamadai type and Katsuzaka type pottery (about 4,600 years ago) from the lower middle layer of the shell layer from the middle layer. Pit dwellings, small pits, and human bones also seem to belong to the Kasori E period in the latter half of the middle period. The two human bones found were both buried and found in the pit dwellings and small pit soil. One of the pits on the small pit is buried with a deer horn cut to the left of the head, and after being covered with dirt, it is noticeable that there was a trace of burning fire above the abdomen. On September 21, 1926, when the survey of the "Connection Groove" B point was completed, the width of the B from the center of the east wall in Minami Ward, to see the relationship with the A point that has been excavated I put a 2m trench. This trench was named "Connection Groove", and Ichiro Yawata of Tokyo Imperial University (currently the University of Tokyo) was in charge of the investigation. The length of the trench reached 14m, but the survey was completed on October 5 without leaving a complete connection with point A, leaving only about 3m. In the connecting ditch, a pit dwelling was found near the point A. With a 4m long diameter and 3.5m short diameter oval plan, the excavation of the loam layer was as deep as 65-75cm. There were four pillar holes, and there was a furnace in the center that buried a Katsusaka-style pottery (about 4,400 years ago) of the middle middle Jomon period, which lacked the lower half. Five skeletons of two adult men, two adult women, and one child were found on the floor of this pit dwelling. These five people were once thought to have died in the wild, but are now favored to be positioned and placed as burials. Two adult women wore a shell bracelet called Itabogaki on their wrists. Opinions that these five people are considered relatives related to brothers, sisters, couples, parents and children, etc., and surrendered their homes to the dead and buried together because multiple people died at the same time (one added later) There is support, but there is no conclusion. ] [Point C] For a month starting in February 1940, Gerrard Groad and Henry Schenig set up a 140 m2 excavation area south of Point A. The shell at the northern point where the excavation started was a little thin, and as it approached the southern end, the shell remained thick and could measure about 1 m depending on the location, plus a large amount of renewable earthenware . It also means that pottery was found in the black soil layer below the shell layer. The ground surface was almost horizontal, but the basement loam was sloping. In addition, it is said that the remains such as the remains of the house were not found, and were used only as a place to throw away. However, ash and clay, a small amount of charcoal, burnt shells, and fish bones have been found in various places in the shell layer, and it is thought that they may have cooked outdoors or cooked here. According to reports, nearly 40 complete or semi-finished pottery excavated at this site. The period seems to be limited to the pottery included in the new Atamadai and Katsusaka styles of the middle Joyo period (about 4,800-4,400 years ago), and the Kasori E 曽 style pottery of the latter half (about 4,300 years ago). Many were deep bowls and pot-shaped pottery, and there were only a few potteries other than boiled, such as shallow bowls. Among them, one piece of perforated pottery with a tsuba is included, indicating that the influence of the culture developed in the Chubu-Mountain District was also affecting Ichikawa. ] [Point D] On September 6, 1948, at the request of Ralph Brown, a survey at Point D was started, led by Nakao Shuzume of the University of Tokyo. Although scheduled to end by September 28, a study team led by the Japan Archaeological Institute's Gerrard Groad, sponsored by the Asian Association and the Dutch Mission, continued the study and continued until December 27 Was implemented. Site D is considerably disturbed to the bottom, and from the disturbed mixed shell layer, the Kasori B-type pottery of the late middle leaf (about 3,600 years ago) is mainly transferred from the well-preserved mixed shell layer below. The Horinouchi pottery of the late front (about 4,000 years ago) was excavated. Remains of a furnace built by three Horinouchi-type pottery pieces stacked on three layers, traces of a house in a fire (two pillars burned in a vertical position, beams and girders with square pillars, burnt bamboo Rugs), a thick ash floor, two furnaces at the same height at the end of the middle Jomon period (about 4,200 years ago). Despite the overlap, there was no clear, well-defined pit. In addition, there are three small pits, which seem to belong to the middle leaf (about 4,500 years ago). Human bones have reached at least 25 bodies. Most dug a hole in the loam enough to contain a corpse and buried it in a supine extension burial (one or two burials). The direction is roughly in line with the ridgeline of the horseshoe-shaped bank. It seems to be the human bone of the late frontal lobe. ] ["Point E" From March 1949 to April 10, 1949, the University of Tokyo Anthropology Department established an excavation zone connected to the east of the point D, and started excavation again. The area is about 90m2. At this time, no record of the survey was published, but according to the human bone record of the University of Tokyo, 10 human bones that retain the individual skeleton and 6 other partial bones are registered. Perhaps not the abandoned burial burial burial burial burial that took place in the latter half of the Jomon period (about 4,300 to 4,000 years ago), digging the loam and burying the dead, similar to point D It seems that ordinary funeral methods are used, showing the general way of the late Jomon period. In the anthropology class of the University of Tokyo, excavation of Ubayama shell mound was carried out again from August 2 to 14, 1950. It is adjacent to the east of point E. No records of the survey have been published at this time, but according to the human bone record, it appears that 23 human bones, one infant, and up to 11 other partial bones have been found. Abbreviated below

The point of excavation of the shell mound is that each signboard gives an overview of the Ubayama shell mound. But it doesn't matter to the parents and children who spend here. There is a distinct area along with the road so that you can see after excavation in a spacious space. On warm winter days, it's quiet for people walking on the outer roads, parents chatting on undulating fields, kids riders and toddlers playing kickboards on the winding roads in the middle. You can see a wonderful winter day. The trees on the outer circumference have wonderful branching. You can see the Sky Tree in the distance. There is a toilet. The parking lot is now closed.