埼玉県 森林管理道（林道）の通行止め情報（川越農林振興センター管内） as of 2025-06-12, states the following about this forest road: “全線通行止め（closed for its whole length）”.
| Reason | 路面不良のため（poor road surface） |
|---|---|
| Until | 当分の間（for the time being） |
Source: 埼玉県 森林管理道（林道）の通行止め情報（川越農林振興センター管内） (as of 2025-06-12) / We have not verified this ourselves. We quote the published wording as it stands.
Map: GSI Tiles (GSI Japan) / Forest road data: © OpenStreetMap contributors (ODbL) / Municipality and elevation: GSI Japan (elevation calculated by us)
| Municipality | 埼玉県飯能市 Nearby place name: 大字上名栗 |
|---|---|
| Length | 3.08 km Calculated by joining the OpenStreetMap line segments. |
| Elevation | 303m–657m Lowest and highest points (difference 354m). Sampled every 50 m. |
| Coordinates of both ends |
35.89568, 139.14882 GSI Maps / Google Maps 35.90436, 139.15675 GSI Maps / Google Maps 1.20 km apart in a straight line. This road is recorded as 6 separate line segments, so there is no way to say which end is the start |
| Surface | asphalt/gravel This is the value recorded in OpenStreetMap. It may differ from what you find on site. |
| Road classification | track (OpenStreetMap classification) |
| OpenStreetMap | way/279279564 way/279279565 way/279544946 way/682680488 way/1371049493 way/1371049494 |
| Name | Type | Straight-line distance | Map |
|---|---|---|---|
| 白岩渓流園キャンプ場 | Campsite | 1.7km | GSI Maps / Google Maps |
Only places found in OpenStreetMap or on Rakuten Travel
appear here. There are very likely more nearby — this table is not a complete list.
Names and locations are collected mechanically from those two sources (huts and campsites
from OpenStreetMap, bookable inns from Rakuten Travel).
The distance is a straight line from the road, not a route you can ride
(500 m across a valley may be unreachable). We do not know whether a place is open,
takes guests, or lets you bathe — neither availability nor rates were checked.
Emergency huts and university lodges are excluded. "onsen" appears only where
bath:type=onsen is mapped; its absence does not mean the water is not hot-spring water.
| Name | Operator | Straight-line distance | Map |
|---|---|---|---|
| 有間ダム | － | 3.6km | GSI 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.
Traffic restriction — quoted exactly as 埼玉県 森林管理道（林道）の通行止め情報（川越農林振興センター管内） publishes it. It was published on 2025-06-12. 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.