Data Download & Attribution
The merged RV dump station database is available for download under the Open Database License (ODbL) 1.0. As a derivative of OpenStreetMap and WhimTrav data (both ODbL), this dataset is share-alike: any adapted database must also be released under ODbL.
Download
stations_merged.csv
4,271 listed + 1,496 likely stations · Updated November 3, 2026
The CSV includes per-record source attribution in the sources, source_ids,
licenses, and attribution columns, as required by ODbL.
License
This database is a Derivative Database of OpenStreetMap and WhimTrav Open Data, both licensed under ODbL 1.0.
Under ODbL, you are free to:
- Share — copy and redistribute the database.
- Create — produce works (apps, websites, analysis) from the database.
- Adapt — modify, transform, and build upon the database.
As long as you:
- Attribute — credit the contributors listed below whenever you use the database publicly.
- Share-Alike — if you make and publicly use an adapted database, release it under ODbL.
- Keep Open — do not restrict others' access to the adapted database.
Produced Works (apps, websites, reports derived from this data) do not need to be ODbL; attribution is required. Site code, design, and copy are not covered by ODbL.
US federal records (USACE, NPS, Recreation.gov, USFS, BLM) in this database are U.S. Government works in the public domain.
Caltrans records are CC BY 4.0. Per-record license information is in the licenses column.
Required Attribution
When using this data publicly, include attribution for all applicable sources. Minimum:
OpenStreetMap
© OpenStreetMap contributors
OSM data includes nodes, ways, and relations with amenity=sanitary_dump_station and host features tagged sanitary_dump_station=yes.
WhimTrav Open Data
© JB-AI Productions + OpenStreetMap contributors, via WhimTrav Open Data
WhimTrav aggregates USACE, NPS, Recreation.gov, USFS, BLM, state and local agency data alongside OSM.
Caltrans Safety Roadside Rest Areas
Caltrans, Safety Roadside Rest Areas (data.ca.gov), CC BY 4.0
California DOT rest areas with RV dump station facilities. Last facility verification: 2023-08-15.
Agency sub-sources (via WhimTrav)
WhimTrav aggregates government and local agency data. These sources have individual records in the CSV
(sub_source column):
CSV Schema
| Column | Description |
|---|---|
| station_id | Stable unique ID (state-osmtype-osmid or state-source-id) |
| name | Station name (generated if original is generic) |
| lat / lon | WGS-84 coordinates |
| state | Two-letter US state code |
| city | City/town (18% coverage; county used as fallback) |
| county | County name |
| fee | "yes", "no", or blank |
| charge | Fee amount string when known |
| opening_hours | OSM-format hours or free text |
| water_point / drinking_water | Water availability booleans |
| access | "public", "customers", "permit", "yes", or blank |
| confidence | "listed" (confirmed) or "likely" (inferred) |
| sources | Pipe-separated source IDs |
| licenses | Pipe-separated license identifiers per record |
| attribution | Combined attribution string for all sources |
| osm_host_feature_only | "yes" if coordinate is the host campground centroid |
| osm_host_kind | Host feature type (e.g. tourism=camp_site) |
| members_json | JSON array with per-record source attribution detail |
This page satisfies the ODbL §4.6 "Offer to Share" requirement for publicly used derivative databases. Database last updated November 3, 2026.