Where to see a Black Swallowtail in California

The Black Swallowtail is recorded in the counties of 7 California state parks (research-grade iNaturalist observations). Ranked by how often it is observed in each area:

1. Heart Bar State Park
2. Chino Hills State Park
3. Silverwood Lake State Recreation Area
4. Providence Mountains State Recreation Area
5. Salton Sea State Recreation Area
6. Mount San Jacinto State Park
7. Lake Perris State Recreation Area

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.

Black Swallowtail in other states → · All California state parks →