Designated trail
John Muir Trail JMT
USFS and NPS trail, shares the PCT for about 150 mi · California, United States
- Published length
- 340 km211 mi211 mi published
- Measured line
- 335.8 km209 mi−1.2% against published
- Line
- In the datasetLicence: ODbL 1.0
- Tier
- RegionalA long trail of 80 km (50 mi) or more
The map needs JavaScript. Download the line from this page.
- Main line
Line: OpenStreetMap, read 2026-11-08, drawn simplified to 30 m. Credit: © OpenStreetMap contributors (ODbL). Base map: OpenFreeMap, © OpenMapTiles, data © OpenStreetMap contributors.
The record
- Kind
- Designated trailDesignated, maintained and published as one trail by a land agency or a trail association
- Designation
- USFS and NPS trail, shares the PCT for about 150 mi
- Tier
- RegionalA long trail of 80 km (50 mi) or more
- Listing
- First setIn the first set of trails
- Where
- CA (California), United States
- Published length
- 340 km211 mi211 mi published. A check value, not measured from the line.
- Short name
- JMT
- Record ID
john-muirStable: the directory name, never changed
Verification Checked 2026-11-08
- Measured
- YesThe line was downloaded and measured
- Published
- 340 km211 mi
- Measured
- 335.8 km209 migeodesic, from the line
- Difference
- −1.2%measured minus published
- Parts
- 1pieces left after joining ends within 100 m
Measured on the OSM relation: 335.8 km in 1 part, 1.2% short of 340 km.
Source and licence
- Line in this dataset
- line.geojsonThe main line file of the record
- Source status
- FoundThe source was located but not downloaded
- Publisher
- No single publisher: NPS Yosemite and Sequoia-Kings Canyon, USFS Inyo and Sierra National Forests
- Source
- https://mapservices.nps.gov/arcgis/rest/services/NationalDatasets/NPS_Public_Trails_Geographic/FeatureServer/0Where to ask for the line: a layer or relation page
- Line source
- OpenStreetMap
- Format
- NPS Public Trails (ArcGIS), filter TRLNAME LIKE '%John Muir%' (73 pieces); USFS National Forest System trails layer for the forest parts
- Main line
- NPS covers only the park parts. OSM relation 1244828 is the only whole-trail line (verified).How the main line is told apart from alternates, connectors and side trails
- Coordinates
- EPSG:4326What the source stores; published files are longitude/latitude (EPSG:4326)
- Licence
- ODbL 1.0
- Credit
- © OpenStreetMap contributors (ODbL)The credit line to show, as the source asks
- May be passed on
- YesThe source's terms allow its line to be passed on
- OpenStreetMap only
- YesOpenStreetMap is the only source of the included line
- Source checked
- 2026-11-08
- Newer release?
- arcgis-layer-edit-date: GET <layer>?f=json and read the layer's last edit date, when it exposes one (and the feature count); fetch again when either changes; plus OSM version for the whole routeHow to tell whether the source has a newer release
What the source says
OpenStreetMap contributors, ODbL 1.0 (share-alike). Credit: © OpenStreetMap contributors. The OpenStreetMap copyright page states: 'You are free to copy, distribute, transmit and adapt our data, as long as you credit OpenStreetMap and its contributors.' (https://www.openstreetmap.org/copyright, read 2026-11-09). The line included here is from OpenStreetMap, relation 1244828.
With the page it was read on. Not legal advice.
OpenStreetMap
- Relation
- 1244828
- Note
- Verified against 340 km.
Logo
No logo. No trail emblem exists. The file removed on 2026-11-08 was the generic NPS arrowhead (the agency mark, not the trail's), fetched from an NPS park page. The map draws the trail name only.
Every field of the record, with its exact value
As stored in trail.toml. The record schema says what each field means.
| Field | Value |
|---|---|
id | john-muir |
name | John Muir Trail |
short_name | JMT |
country | US |
regions[0] | CA |
length_km | 340 |
length_note | 211 mi published |
tier | regional |
designation | USFS and NPS trail, shares the PCT for about 150 mi |
wave | 1 |
source.status | found |
source.publisher | No single publisher: NPS Yosemite and Sequoia-Kings Canyon, USFS Inyo and Sierra National Forests |
source.url | https://mapservices.nps.gov/arcgis/rest/services/NationalDatasets/NPS_Public_Trails_Geographic/FeatureServer/0 |
source.discovery | arcgis-layer-edit-date: GET <layer>?f=json and read the layer's last edit date, when it exposes one (and the feature count); fetch again when either changes; plus OSM version for the whole route |
source.format | NPS Public Trails (ArcGIS), filter TRLNAME LIKE '%John Muir%' (73 pieces); USFS National Forest System trails layer for the forest parts |
source.crs | EPSG:4326 |
source.licence | ODbL-1.0 |
source.licence_text | OpenStreetMap contributors, ODbL 1.0 (share-alike). Credit: © OpenStreetMap contributors. The OpenStreetMap copyright page states: 'You are free to copy, distribute, transmit and adapt our data, as long as you credit OpenStreetMap and its contributors.' (https://www.openstreetmap.org/copyright, read 2026-11-09). The line included here is from OpenStreetMap, relation 1244828. |
source.attribution | OpenStreetMap contributors (ODbL) |
source.osm_only | true |
source.mainline | NPS covers only the park parts. OSM relation 1244828 is the only whole-trail line (verified). |
source.source_checked | 2026-11-08 |
source.redistributable | true |
source.line_source | OpenStreetMap |
source.line_file | line.geojson |
osm.relation | 1244828 |
osm.note | Verified against 340 km. |
shield.status | no-logo-exists |
shield.logo_source | "" |
shield.contact | USFS Inyo National Forest; NPS |
shield.note | No trail emblem exists. The file removed on 2026-11-08 was the generic NPS arrowhead (the agency mark, not the trail's), fetched from an NPS park page. The map draws the trail name only. |
shield.logo_file | "" |
shield.logo_owner | USFS Inyo National Forest; NPS |
verification.verified | true |
verification.date | 2026-11-08 |
verification.measured_km | 335.8 |
verification.difference_percent | -1.2 |
verification.parts | 1 |
verification.note | Measured on the OSM relation: 335.8 km in 1 part, 1.2% short of 340 km. |