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A closure has been announced

埼玉県 森林管理道(林道)の通行制限情報(秩父農林振興センター管内) as of 2026-07-24, states the following about this forest road: “全面通行止め(closed to all traffic)”.

Section全線(秩父市吉田石間地内)
Reason開設工事中のため(construction work in progress)
Until当面の間(until further notice)

Source: 埼玉県 森林管理道(林道)の通行制限情報(秩父農林振興センター管内) (as of 2026-07-24) / We have not verified this ourselves. We quote the published wording as it stands.

Where this forest road is

林道半納城峰線
Nearby forest roads (select one to open its page)
Both ends

Map: GSI Tiles (GSI Japan) / Forest road data: © OpenStreetMap contributors (ODbL) / Municipality and elevation: GSI Japan (elevation calculated by us)

Data

Municipality埼玉県秩父市
Nearby place name: 吉田石間
Length1.47 km
Calculated by joining the OpenStreetMap line segments.
Elevation600m–680m
Lowest and highest points (difference 80m). Sampled every 50 m.
Coordinates of both ends 36.08953, 138.99544 GSI Maps / Google Maps
36.09074, 138.98615 GSI Maps / Google Maps
846 m apart in a straight line. This road is recorded as 2 separate line segments, so there is no way to say which end is the start
Surfaceunpaved
This is the value recorded in OpenStreetMap. It may differ from what you find on site.
Road classificationtrack (OpenStreetMap classification)
OpenStreetMapway/731815842 way/1419144085

Places to stay a little further out (within 10 km)

NameStraight-line distanceMap
【閉鎖】遊び宿KAKA長瀞 ^Rakuten Travel3.2kmGSI Maps / Google Maps
かおる鉱泉Rakuten Travel3.4kmGSI Maps / Google Maps
冬桜の宿 神泉Rakuten Travel4.6kmGSI Maps / Google Maps
城峯公園キャンプ場Rakuten Travel4.6kmGSI Maps / Google Maps
みどりの村ログハウスキャンプ場 ^Rakuten Travel5.4kmGSI Maps / Google Maps
ハタラコリビング みなのsubakoRakuten Travel6.9kmGSI Maps / Google Maps
星音の宿ばいえるRakuten Travel7.1kmGSI Maps / Google Maps
ホテル ユニオンヴェールRakuten Travel7.3kmGSI Maps / Google Maps

Showing the 8 nearest only (14 more)

“Rakuten Travel” buttons are affiliate advertising: bookings made through them earn this site a commission. Which places appear, and in what order, is decided by distance alone. A missing button only means we could not find the place on Rakuten Travel — it does not mean it is closed.

No accommodation listed on Rakuten Travel was found within 3 km of this road. The search was therefore widened to 10 km, nearest first. Distances are straight-line distances from the road, not road distances — 5 km with a mountain in between can still take an hour to ride. We do not know whether these places are open or have rooms free — availability and prices are not checked. Only places listed on Rakuten Travel appear here, so this is not everything within range, and only places in the same prefecture are searched: somewhere just across a prefectural border may well be closer.

Dams within 5 km

NameOperatorStraight-line distanceMap
合角ダム3.9kmGSI Maps / Google Maps

These dams are mapped in OpenStreetMap. The distance is a straight line from the road, not a route you can ride. We do not know whether you can get close — many dams sit behind maintenance roads that are closed to the public. Check dams (sabo dams) and weirs are excluded: they are flood-control structures and some are dangerous to approach. OpenStreetMap does not record whether a dam is a check dam, so to avoid listing one by mistake we keep only dams with a known operator, an encyclopaedia entry, or an official website. Some real dams are missed as a result.

Whether you can ride it is not stated here

Traffic restriction — quoted exactly as 埼玉県 森林管理道(林道)の通行制限情報(秩父農林振興センター管内) publishes it. It was published on 2026-07-24. The state of a forest road changes with every storm and every landslide. Before you set out, always check the source and the signs on site.

What is on this page — a location, a name, and quotations of what others have published or written. None of it has been verified by us on the ground. Conditions may have changed since anything here was quoted.

Forest roads were not built for recreational driving