In the Tigers Nest deep in the Sundarban forest Heritage sites.

Protected site within the reserve forest by Forest Department.UNESCO Tentative Heritage list Bangladesh.

Arpangasia cluster: Though seven buried and structural mounds in the Arpangasia River valley within the reserve mangrove forest area of the Sundarban have been included at the components of this property, there are several other exposed and partially preserved archaeological sites in the zone marked by the mangrove ecosystem. These sites can be dated back to c. 8th-9th century CE. Recent surveying (by the Government Department of Archaeology, and several other local archaeologists) has provided archaeological evidence in a dynamic and partially inundated landscape within the mangrove forest of the Sundarbans.

AGD. 10

Aangrakona 1

Buried structural mound

c. 9th -14th 16th century CE

Arpangasia, Shyamnagar, Satkhira

22°1' 15.92" N

89°16' 44.26" E

Protected within the reserve forest by Forest Department

AGD. 11

Aangrakona 2

Buried structural mound

c. 9th -14th 16th century CE

Arpangasia, Shyamnagar, Satkhira

22°1' 29.32" N

89°6' 47.35" E

Protected within the reserve forest by Forest Department

AGD. 12

Aanrakona 3

Buried structural mound

c. 9th -14th 16th century CE

22°0' 36.18" N

89°16' 27.23" E

Protected within the reserve forest by Forest Department

AGD. 13

Sindukkhali 1

Buried structural mound

c. 9th -14th 16th century CE

Arpangasia, Shyamnagar, Satkhira

22°1' 2.14" N

89°17' 2.29" E

Protected within the reserve forest by Forest Department

AGD. 14

Sindukkhali 2

Buried structural mound

c. 9th -14th 16th century CE

Agrakona, Shymanagar, Satkhira

22°1' 9.8" N

89°17'11.47" E

Protected within the reserve forest by Forest Department

AGD. 15

Angrakona-Sindukkhali 1

Buried structural mound

c. 9th -14th 16th century CE

Agrakona, Shymanagar, Satkhira

22°0' 30.02" N

89°16' 34.68" E

Protected within the reserve forest by Forest Department

AGD. 16

Angrakona-Sindukkhali 2

Buried structural mound

c. 9th -14th 16th century CE

Agrakona, Shymanagar, Satkhira

22°0' 30.02" N

89°16' 34.68" E