A PDF field guide to the species reported in and around Castle Rock County Park, with common and scientific names and up to 3 photos of each, laid out for use in the field and offline.
Species people report often in and around Castle Rock County Park include Chestnut-Sided Warbler, Racket-Tailed Emerald, Common Whitetail, Shield Lichen and Pipsissewa. Plants lead the list with 38 species, followed by 3 insects and 2 fungi.
The 20 species reported most often here, of 44 in the full guide.

Shield Lichen

Pipsissewa

Linear Cow-Wheat

Grainy Shadow-Crust Lichen
Broom Bluestem

Tell me what you're looking for, and I'll do my best to answer.

Falsepennyroyal
Blackcap

Wild Tea


Longleaf Bluet
Blue-Bean

Ribseed Sandmat
American Spurge

Spotted Knapweed
Whorled Milkweed

Sand Evening-Primrose

Tell me what you're looking for, and I'll do my best to answer.
Horse-Mint
Carpetweed