Observation — Wayproof evidence

Claims and evidence

Official dataset route segment

Coordinate reference system

EPSG:4269

Dataset feature id

639521fd-c2b6-4644-b3d5-94cf510ff1b1

Dataset feature name

Dream Lake Trail

Dataset field

lengthmiles

Distance miles

0.03756443

Distance status

known

End coordinate

Latitude: 40.4425061
Longitude: -121.4068179

Operational status requires current check

Yes

Route role

official mainline

Source data description

NPS Trails 11/2019

Source load date

2019-12-10T07:53:56.000

Source mode attributes

Bicycle: No
Hiker pedestrian: Yes
Pack saddle: Yes

Source originator

National Park Service

Start coordinate

Latitude: 40.4429587
Longitude: -121.4065242

Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-route-boiling-springs-lake-trail

Evidence stance: supports · Evidence details
The official USGS Topo Vector trail layer preserves a connected Warner Valley approach to Boiling Springs Lake and an around-lake network as twelve atomic NPS trail features. Feature names change along the shared approach, and the lake network contains parallel branches, so the features are retained rather than collapsed into a single inferred line. Dataset publication warns that temporal changes may have occurred and current NPS conditions remain necessary.
Publisher
U.S. Geological Survey
Observer / attribution
Not recorded
Observed at
Unknown
Retrieved at
2026-09-23T15:00:00+00:00
Retrieval time does not establish when an event occurred.
Observation details · Source details · Original source: U.S. Geological Survey

Official dataset route segment

Coordinate reference system

EPSG:4269

Dataset feature id

db8d0288-0759-4bf0-929a-b2eaafde8f19

Dataset feature name

Hot Springs Creek Trail

Dataset field

lengthmiles

Distance miles

0.21102305

Distance status

known

End coordinate

Latitude: 40.441765
Longitude: -121.4035397

Operational status requires current check

Yes

Route role

official mainline

Source data description

NPS Trails 11/2019

Source load date

2019-12-10T07:53:56.000

Source mode attributes

Bicycle: No
Hiker pedestrian: Yes
Pack saddle: Yes

Source originator

National Park Service

Start coordinate

Latitude: 40.4425061
Longitude: -121.4068179

Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-route-boiling-springs-lake-trail

Evidence stance: supports · Evidence details
The official USGS Topo Vector trail layer preserves a connected Warner Valley approach to Boiling Springs Lake and an around-lake network as twelve atomic NPS trail features. Feature names change along the shared approach, and the lake network contains parallel branches, so the features are retained rather than collapsed into a single inferred line. Dataset publication warns that temporal changes may have occurred and current NPS conditions remain necessary.
Publisher
U.S. Geological Survey
Observer / attribution
Not recorded
Observed at
Unknown
Retrieved at
2026-09-23T15:00:00+00:00
Retrieval time does not establish when an event occurred.
Observation details · Source details · Original source: U.S. Geological Survey

Official dataset route segment

Coordinate reference system

EPSG:4269

Dataset feature id

c9581255-9bfc-45c8-b5c2-589e217c9e2f

Dataset feature name

Boiling Springs Lake Trail

Dataset field

lengthmiles

Distance miles

0.26099896

Distance status

known

End coordinate

Latitude: 40.4342158
Longitude: -121.3959257

Operational status requires current check

Yes

Route role

official mainline

Source data description

NPS Trails 11/2019

Source load date

2019-12-10T07:53:56.000

Source mode attributes

Bicycle: No
Hiker pedestrian: Yes
Pack saddle: Yes

Source originator

National Park Service

Start coordinate

Latitude: 40.4366966
Longitude: -121.3987323

Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-route-boiling-springs-lake-trail

Evidence stance: supports · Evidence details
The official USGS Topo Vector trail layer preserves a connected Warner Valley approach to Boiling Springs Lake and an around-lake network as twelve atomic NPS trail features. Feature names change along the shared approach, and the lake network contains parallel branches, so the features are retained rather than collapsed into a single inferred line. Dataset publication warns that temporal changes may have occurred and current NPS conditions remain necessary.
Publisher
U.S. Geological Survey
Observer / attribution
Not recorded
Observed at
Unknown
Retrieved at
2026-09-23T15:00:00+00:00
Retrieval time does not establish when an event occurred.
Observation details · Source details · Original source: U.S. Geological Survey

Official dataset route segment

Coordinate reference system

EPSG:4269

Dataset feature id

c6e93b28-05cb-49bb-bf17-7fbe3dee8bb9

Dataset feature name

Boiling Springs Lake Trail

Dataset field

lengthmiles

Distance miles

0.01784387

Distance status

known

End coordinate

Latitude: 40.4367072
Longitude: -121.3976608

Operational status requires current check

Yes

Route role

official mainline

Source data description

NPS Trails 11/2019

Source load date

2019-12-10T07:53:56.000

Source mode attributes

Bicycle: No
Hiker pedestrian: Yes
Pack saddle: Yes

Source originator

National Park Service

Start coordinate

Latitude: 40.4369447
Longitude: -121.3975502

Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-route-boiling-springs-lake-trail

Evidence stance: supports · Evidence details
The official USGS Topo Vector trail layer preserves a connected Warner Valley approach to Boiling Springs Lake and an around-lake network as twelve atomic NPS trail features. Feature names change along the shared approach, and the lake network contains parallel branches, so the features are retained rather than collapsed into a single inferred line. Dataset publication warns that temporal changes may have occurred and current NPS conditions remain necessary.
Publisher
U.S. Geological Survey
Observer / attribution
Not recorded
Observed at
Unknown
Retrieved at
2026-09-23T15:00:00+00:00
Retrieval time does not establish when an event occurred.
Observation details · Source details · Original source: U.S. Geological Survey

Official dataset route segment

Coordinate reference system

EPSG:4269

Dataset feature id

36c9bad7-80a5-4f67-9d5a-0cd3acdc43ac

Dataset feature name

Boiling Springs Lake Trail

Dataset field

lengthmiles

Distance miles

0.05962093

Distance status

known

End coordinate

Latitude: 40.4366966
Longitude: -121.3987323

Operational status requires current check

Yes

Route role

official mainline

Source data description

NPS Trails 11/2019

Source load date

2019-12-10T07:53:56.000

Source mode attributes

Bicycle: No
Hiker pedestrian: Yes
Pack saddle: Yes

Source originator

National Park Service

Start coordinate

Latitude: 40.4367072
Longitude: -121.3976608

Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-route-boiling-springs-lake-trail

Evidence stance: supports · Evidence details
The official USGS Topo Vector trail layer preserves a connected Warner Valley approach to Boiling Springs Lake and an around-lake network as twelve atomic NPS trail features. Feature names change along the shared approach, and the lake network contains parallel branches, so the features are retained rather than collapsed into a single inferred line. Dataset publication warns that temporal changes may have occurred and current NPS conditions remain necessary.
Publisher
U.S. Geological Survey
Observer / attribution
Not recorded
Observed at
Unknown
Retrieved at
2026-09-23T15:00:00+00:00
Retrieval time does not establish when an event occurred.
Observation details · Source details · Original source: U.S. Geological Survey

Official dataset route segment

Coordinate reference system

EPSG:4269

Dataset feature id

ba68cf25-c7eb-42ed-a493-5fbd0106ac5a

Dataset feature name

Boiling Springs Lake Trail

Dataset field

lengthmiles

Distance miles

0.02154372

Distance status

known

End coordinate

Latitude: 40.4367072
Longitude: -121.3976608

Operational status requires current check

Yes

Route role

official mainline

Source data description

NPS Trails 11/2019

Source load date

2019-12-10T07:53:56.000

Source mode attributes

Bicycle: No
Hiker pedestrian: Yes
Pack saddle: Yes

Source originator

National Park Service

Start coordinate

Latitude: 40.4368094
Longitude: -121.3972746

Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-route-boiling-springs-lake-trail

Evidence stance: supports · Evidence details
The official USGS Topo Vector trail layer preserves a connected Warner Valley approach to Boiling Springs Lake and an around-lake network as twelve atomic NPS trail features. Feature names change along the shared approach, and the lake network contains parallel branches, so the features are retained rather than collapsed into a single inferred line. Dataset publication warns that temporal changes may have occurred and current NPS conditions remain necessary.
Publisher
U.S. Geological Survey
Observer / attribution
Not recorded
Observed at
Unknown
Retrieved at
2026-09-23T15:00:00+00:00
Retrieval time does not establish when an event occurred.
Observation details · Source details · Original source: U.S. Geological Survey

Official dataset route segment

Coordinate reference system

EPSG:4269

Dataset feature id

1332e5de-c1ff-4f3e-98c8-e58fda130e27

Dataset feature name

Pacific Crest National Scenic Trail

Dataset field

lengthmiles

Distance miles

0.26832894

Distance status

known

End coordinate

Latitude: 40.4394708
Longitude: -121.4007334

Operational status requires current check

Yes

Route role

official mainline

Source data description

NPS Trails 11/2019

Source load date

2025-05-02T09:34:56.000

Source mode attributes

Bicycle: No
Hiker pedestrian: Yes
Pack saddle: Yes

Source originator

National Park Service

Start coordinate

Latitude: 40.4416803
Longitude: -121.4036544

Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-route-boiling-springs-lake-trail

Evidence stance: supports · Evidence details
The official USGS Topo Vector trail layer preserves a connected Warner Valley approach to Boiling Springs Lake and an around-lake network as twelve atomic NPS trail features. Feature names change along the shared approach, and the lake network contains parallel branches, so the features are retained rather than collapsed into a single inferred line. Dataset publication warns that temporal changes may have occurred and current NPS conditions remain necessary.
Publisher
U.S. Geological Survey
Observer / attribution
Not recorded
Observed at
Unknown
Retrieved at
2026-09-23T15:00:00+00:00
Retrieval time does not establish when an event occurred.
Observation details · Source details · Original source: U.S. Geological Survey

Official dataset route segment

Coordinate reference system

EPSG:4269

Dataset feature id

fe6c7f37-6146-4f25-9eaa-07151a772260

Dataset feature name

Pacific Crest National Scenic Trail

Dataset field

lengthmiles

Distance miles

0.00862769

Distance status

known

End coordinate

Latitude: 40.4416803
Longitude: -121.4036544

Operational status requires current check

Yes

Route role

official mainline

Source data description

NPS Trails 11/2019

Source load date

2025-05-02T09:34:56.000

Source mode attributes

Bicycle: No
Hiker pedestrian: Yes
Pack saddle: Yes

Source originator

National Park Service

Start coordinate

Latitude: 40.441765
Longitude: -121.4035397

Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-route-boiling-springs-lake-trail

Evidence stance: supports · Evidence details
The official USGS Topo Vector trail layer preserves a connected Warner Valley approach to Boiling Springs Lake and an around-lake network as twelve atomic NPS trail features. Feature names change along the shared approach, and the lake network contains parallel branches, so the features are retained rather than collapsed into a single inferred line. Dataset publication warns that temporal changes may have occurred and current NPS conditions remain necessary.
Publisher
U.S. Geological Survey
Observer / attribution
Not recorded
Observed at
Unknown
Retrieved at
2026-09-23T15:00:00+00:00
Retrieval time does not establish when an event occurred.
Observation details · Source details · Original source: U.S. Geological Survey

Official dataset route segment

Coordinate reference system

EPSG:4269

Dataset feature id

94c12ea3-28c3-4aea-b65f-aae4cf40e0c5

Dataset feature name

Pacific Crest National Scenic Trail

Dataset field

lengthmiles

Distance miles

0.26822192

Distance status

known

End coordinate

Latitude: 40.4369447
Longitude: -121.3975502

Operational status requires current check

Yes

Route role

official mainline

Source data description

NPS Trails 11/2019

Source load date

2025-05-02T09:34:56.000

Source mode attributes

Bicycle: No
Hiker pedestrian: Yes
Pack saddle: Yes

Source originator

National Park Service

Start coordinate

Latitude: 40.4394708
Longitude: -121.4007334

Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-route-boiling-springs-lake-trail

Evidence stance: supports · Evidence details
The official USGS Topo Vector trail layer preserves a connected Warner Valley approach to Boiling Springs Lake and an around-lake network as twelve atomic NPS trail features. Feature names change along the shared approach, and the lake network contains parallel branches, so the features are retained rather than collapsed into a single inferred line. Dataset publication warns that temporal changes may have occurred and current NPS conditions remain necessary.
Publisher
U.S. Geological Survey
Observer / attribution
Not recorded
Observed at
Unknown
Retrieved at
2026-09-23T15:00:00+00:00
Retrieval time does not establish when an event occurred.
Observation details · Source details · Original source: U.S. Geological Survey

Official dataset route segment

Coordinate reference system

EPSG:4269

Dataset feature id

e48c8372-9b97-457a-8eee-acb3c26674e6

Dataset feature name

Boiling Springs Lake Trail

Dataset field

lengthmiles

Distance miles

0.2141947

Distance status

known

End coordinate

Latitude: 40.4368094
Longitude: -121.3972746

Operational status requires current check

Yes

Route role

official mainline

Source data description

NPS Trails 11/2019

Source load date

2019-12-10T07:53:56.000

Source mode attributes

Bicycle: No
Hiker pedestrian: Yes
Pack saddle: Yes

Source originator

National Park Service

Start coordinate

Latitude: 40.4342158
Longitude: -121.3959257

Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-route-boiling-springs-lake-trail

Evidence stance: supports · Evidence details
The official USGS Topo Vector trail layer preserves a connected Warner Valley approach to Boiling Springs Lake and an around-lake network as twelve atomic NPS trail features. Feature names change along the shared approach, and the lake network contains parallel branches, so the features are retained rather than collapsed into a single inferred line. Dataset publication warns that temporal changes may have occurred and current NPS conditions remain necessary.
Publisher
U.S. Geological Survey
Observer / attribution
Not recorded
Observed at
Unknown
Retrieved at
2026-09-23T15:00:00+00:00
Retrieval time does not establish when an event occurred.
Observation details · Source details · Original source: U.S. Geological Survey

Official dataset route segment

Coordinate reference system

EPSG:4269

Dataset feature id

077a6814-3b01-4aac-ae9a-d347f6b4123d

Dataset feature name

Devil'S Kitchen Trail

Dataset field

lengthmiles

Distance miles

0.63830454

Distance status

known

End coordinate

Latitude: 40.4429587
Longitude: -121.4065242

Operational status requires current check

Yes

Route role

official mainline

Source data description

NPS Trails 11/2019

Source load date

2019-12-10T07:53:56.000

Source mode attributes

Bicycle: No
Hiker pedestrian: Yes
Pack saddle: Yes

Source originator

National Park Service

Start coordinate

Latitude: 40.4435289
Longitude: -121.4172635

Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-route-boiling-springs-lake-trail

Evidence stance: supports · Evidence details
The official USGS Topo Vector trail layer preserves a connected Warner Valley approach to Boiling Springs Lake and an around-lake network as twelve atomic NPS trail features. Feature names change along the shared approach, and the lake network contains parallel branches, so the features are retained rather than collapsed into a single inferred line. Dataset publication warns that temporal changes may have occurred and current NPS conditions remain necessary.
Publisher
U.S. Geological Survey
Observer / attribution
Not recorded
Observed at
Unknown
Retrieved at
2026-09-23T15:00:00+00:00
Retrieval time does not establish when an event occurred.
Observation details · Source details · Original source: U.S. Geological Survey

Official dataset route segment

Coordinate reference system

EPSG:4269

Dataset feature id

d0ca7a44-9773-4286-9921-cc664f3a72a5

Dataset feature name

Boiling Springs Lake Trail

Dataset field

lengthmiles

Distance miles

0.23998938

Distance status

known

End coordinate

Latitude: 40.4366966
Longitude: -121.3987323

Operational status requires current check

Yes

Route role

official mainline

Source data description

NPS Trails 11/2019

Source load date

2019-12-10T07:53:56.000

Source mode attributes

Bicycle: No
Hiker pedestrian: Yes
Pack saddle: Yes

Source originator

National Park Service

Start coordinate

Latitude: 40.4394708
Longitude: -121.4007334

Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-route-boiling-springs-lake-trail

Evidence stance: supports · Evidence details
The official USGS Topo Vector trail layer preserves a connected Warner Valley approach to Boiling Springs Lake and an around-lake network as twelve atomic NPS trail features. Feature names change along the shared approach, and the lake network contains parallel branches, so the features are retained rather than collapsed into a single inferred line. Dataset publication warns that temporal changes may have occurred and current NPS conditions remain necessary.
Publisher
U.S. Geological Survey
Observer / attribution
Not recorded
Observed at
Unknown
Retrieved at
2026-09-23T15:00:00+00:00
Retrieval time does not establish when an event occurred.
Observation details · Source details · Original source: U.S. Geological Survey

Recorded observations

Browse observations separately (1)

The official USGS Topo Vector trail layer preserves a connected Warner Valley approach to Boiling Springs Lake and an around-lake network as twelve atomic NPS trail features. Feature names change along the shared approach, and the lake network contains parallel branches, so the features are retained rather than collapsed into a single inferred line. Dataset publication warns that temporal changes may have occurred and current NPS conditions remain necessary.

Publisher: U.S. Geological Survey
Observer / attribution: Not recorded
Observed at: Unknown
Retrieved at: 2026-09-23T15:00:00+00:00

Retrieval time does not establish when an event occurred.

Observation details · Source details · Original source: U.S. Geological Survey

Published record history

wp-20260923-lassen-boiling-springs-route-graph: ADD — Publish the official distance-bearing Warner Valley approach and Boiling Springs Lake circuit without flattening its shared and parallel branches.

History lists published operations; it does not reconstruct removed content or confirm that external media remains available.

JSON

Historical evidence is not a guarantee of current conditions.

Claims and evidence

Recorded observations

Related records and places

Related places

Published record history