Where to see a Gray Hairstreak in California

The Gray Hairstreak is recorded in the counties of 171 California state parks (research-grade iNaturalist observations). Ranked by how often it is observed in each area:

1. Mount Diablo State Park
2. Marsh Creek State Park
3. Pacheco State Park
4. McConnell State Recreation Area
5. Great Valley Grasslands State Park
6. George J. Hatfield State Recreation Area
7. San Luis Reservoir State Recreation Area
8. Negro Bar State Park
9. Mormon Island Wetlands State Park
10. Brannan Island State Recreation Area
11. Jedediah Smith Redwoods State Park
12. Del Norte Coast Redwoods State Park
13. Gaviota State Park
14. Pelican State Beach
15. Refugio State Beach
16. Point Sal State Beach
17. El Capitán State Beach
18. Carpinteria State Beach
19. Tolowa Dunes State Park
20. Redwood National and State Parks
21. Millerton Lake State Recreation Area
22. McLaughlin Eastshore State Park
23. Lake Del Valle State Recreation Area
24. Bethany Reservoir State Recreation Area
25. Salt Point State Park

These are county-level records — the species is documented in the area around each park, which is a strong steer rather than a guarantee for the park itself.

Gray Hairstreak in other states → · All California state parks →