Trial Island
Harbor Seal, California Sea Lion, Steller Sea Lion · 48 reports from 22 observers, April 2009 to September 2026
In the atlas
Site 14.04 in the WDFW Atlas of Seal and Sea Lion Haulout Sites in Washington (Jeffries et al., 2000), surveyed in the late 1990s: harbor seal, California sea lion, Steller sea lion · 100 to 500 animals · used mainly at low tide.
Intertidal rocks and reef areas around Trail Island.
This entry was extracted from the atlas's tables by machine and has not yet been checked against the printed page. Its coordinates are the atlas's, in a 1927 datum, and may sit up to 200 m from where a modern map puts them.
Reports
Pinniped sightings reported within 500 m of this point, nearly all from iNaturalist. A report here says someone saw seals or sea lions near a known site; it does not say which animals, or how many.
Harbor Seal · 28 reports
| J | F | M | A | M | J | J | A | S | O | N | D | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | 1 | 1 | ||||||||
| 2025 | 1 | 1 | ||||||||||
| 2024 | 1 | 2 | 1 | |||||||||
| 2023 | 1 | |||||||||||
| 2022 | 2 | 1 | 4 | |||||||||
| 2021 | 2 | 1 | 1 | |||||||||
| 2020 | 1 | 1 | ||||||||||
| 2019 | 2 | |||||||||||
| 2018 | 1 | |||||||||||
| 2017 | ||||||||||||
| 2016 | ||||||||||||
| 2015 |
Reports per month, as identified on iNaturalist by the people who filed them; the grid shows the last 12 years, and there are earlier reports.
California Sea Lion · 13 reports
| J | F | M | A | M | J | J | A | S | O | N | D | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | ||||||||||
| 2025 | 2 | 1 | 1 | 1 | 1 | |||||||
| 2024 | 1 | 1 | ||||||||||
| 2023 | 1 | |||||||||||
| 2022 | 2 |
Reports per month, as identified on iNaturalist by the people who filed them.
Steller Sea Lion · 7 reports
| J | F | M | A | M | J | J | A | S | O | N | D | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | ||||||||||||
| 2025 | 2 | 1 | 1 | |||||||||
| 2024 | 1 | |||||||||||
| 2023 | 1 | |||||||||||
| 2022 | 1 |
Reports per month, as identified on iNaturalist by the people who filed them.
Photos from the reports. Each links to its source; the attribution is in the tooltip.
- Sep 26, 2026 · Harbor Seal · griffinduckworth on iNaturalist · 450 m away · source
- Jun 6, 2026 · Harbor Seal · benmilligan on iNaturalist · 490 m away · source
- May 3, 2026 · Harbor Seal · lmjyln on iNaturalist · 350 m away · location approximate (±1496 m) · source
- Apr 27, 2026 · Harbor Seal · enspring on iNaturalist · 479 m away · source
- Apr 8, 2026 · California Sea Lion · roanan_d on iNaturalist · 406 m away · source
- Jan 3, 2026 · California Sea Lion · bstarzomski on iNaturalist · 384 m away · source
- Dec 15, 2025 · California Sea Lion · greenmanonpark on iNaturalist · 386 m away · source
- Nov 23, 2025 · Harbor Seal · carterdorscht on iNaturalist · 448 m away · source
- Nov 21, 2025 · Steller Sea Lion · bstarzomski on iNaturalist · 393 m away · source
- Nov 6, 2025 · California Sea Lion · greenmanonpark on iNaturalist · 408 m away · source
- Oct 18, 2025 · Steller Sea Lion · bstarzomski on iNaturalist · 363 m away · source
- Sep 16, 2025 · Steller Sea Lion · dgarv75 on iNaturalist · 492 m away · source
- Sep 16, 2025 · Harbor Seal · dgarv75 on iNaturalist · 488 m away · source
- Sep 16, 2025 · Steller Sea Lion · dgarv75 on iNaturalist · 489 m away · source
- Sep 16, 2025 · California Sea Lion · dgarv75 on iNaturalist · 475 m away · source
- Feb 9, 2025 · California Sea Lion · bstarzomski on iNaturalist · 407 m away · source
- Jan 12, 2025 · California Sea Lion · bstarzomski on iNaturalist · 395 m away · source
- Jan 11, 2025 · California Sea Lion · ryleighwhitfield on iNaturalist · 354 m away · source
- Dec 3, 2024 · California Sea Lion · insaneplantlover on iNaturalist · 460 m away · source
- Dec 1, 2024 · Harbor Seal · insaneplantlover on iNaturalist · 487 m away · source
- Oct 15, 2024 · California Sea Lion · deciduousdaydream on iNaturalist · 392 m away · source
- Sep 28, 2024 · Harbor Seal · sala_mandur_luvr on iNaturalist · 462 m away · source
- Sep 28, 2024 · Harbor Seal · sala_mandur_luvr on iNaturalist · 491 m away · source
- Feb 12, 2024 · Harbor Seal · aiva on iNaturalist · 500 m away · source
- Feb 4, 2024 · Steller Sea Lion · asaxatalis on iNaturalist · 271 m away · source
- Dec 16, 2023 · California Sea Lion · earley_bird on iNaturalist · 492 m away · source
- Dec 16, 2023 · Harbor Seal · bstarzomski on iNaturalist · 291 m away · source
- Nov 11, 2023 · Steller Sea Lion · bstarzomski on iNaturalist · 446 m away · source
- Dec 17, 2022 · Harbor Seal · bstarzomski on iNaturalist · 460 m away · source
- Dec 17, 2022 · Harbor Seal · bstarzomski on iNaturalist · 485 m away · source
- Dec 17, 2022 · Harbor Seal · bstarzomski on iNaturalist · 361 m away · source
- Dec 15, 2022 · Harbor Seal · bstarzomski on iNaturalist · 421 m away · source
- Oct 26, 2022 · Harbor Seal · bobmcd on iNaturalist · 467 m away · source
- Oct 23, 2022 · Steller Sea Lion · liam_pentangelo on iNaturalist · 94 m away · source
- Oct 23, 2022 · California Sea Lion · liam_pentangelo on iNaturalist · 291 m away · source
- Oct 23, 2022 · California Sea Lion · liam_pentangelo on iNaturalist · 370 m away · source
- Jul 17, 2022 · Harbor Seal · enspring on iNaturalist · 486 m away · source
- Jul 17, 2022 · Harbor Seal · enspring on iNaturalist · 459 m away · source
- Aug 7, 2021 · Harbor Seal · thenewells on iNaturalist · 481 m away · source
- Mar 31, 2021 · Harbor Seal · iancruickshank on iNaturalist · 339 m away · source
and 8 earlier reports.
Of 48 reports, 47 state a location accurate to within 500 m, and 45 carry a photo. Reports rarely say how many animals were present, so no counts are shown.
Nearby sites
- Chain Islets · 3.2 km · harbor seal