Naganuma Pond

Horonobe Town ・長沼

NowNaganuma Pond today3D view built from GSI elevation data and recent aerial imagery. Use the buttons at top left to view from the north, east, south or west, or drag to rotate. On phones, move two fingers up or down to tilt, and pinch to zoom.

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GSI Tiles (elevation tiles, seamless aerial photos), processed by this site.

Aerial photo of Naganuma Pond (Horonobe Town, Hokkaido) taken in 1977 — Taken October 25, 1977. Source: aerial photo by the Geospatial Information Authority of Japan (1977), resized.GSI Maps and Aerial Photo Service

About Naganuma Pond

A long, narrow lagoon-origin pond in the Sarobetsu Plain, Horonobe Town, within the Sarobetsu Plain Ramsar Site designated in 2005. In the 1991 survey it was an unmodified lake, with sticklebacks, Japanese dace and Sakhalin taimen, and red-necked grebes.

Sources: Ministry of the Environment, Ramsar Site leaflet: Sarobetsu-genya, Environment Agency of Japan, Lake Survey Report (1993), Environment Agency of Japan, Lake Survey Report: Data Appendix (1993) (sources in Japanese)

Lake data

Area: 0.11 km²#78 in Hokkaido
Maximum depth: 1 m#93 in Hokkaido
Average depth: 0.7 m
Surface elevation: 3 m
Origin: Lagoon-origin lake
Lake type: Dystrophic
Fresh or brackish: Freshwater
Freezing: Freezes in winter
Unmodified lake: Yes (shore entirely natural)
Natural park: Rishiri-Rebun-Sarobetsu National Park
Ramsar Convention: Ramsar Site
Lake number: 0850number in the national lake survey

Sources: Environment Agency of Japan, 4th National Survey on the Natural Environment: Lake Survey Report (1993). Area and depth use newer figures from the Geospatial Information Authority of Japan where available. Origin, lake type, transparency, freezing and unmodified status are as of the 1991 survey.

Themes that include Naganuma Pond

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Straight-line distances.