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Natural Areas

Colina Mariposa Natural Area

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Trail Status:

Open without issues.


A unique feature of Colina Mariposa Natural Area is the high butterfly diversity on the eastern ridge, which led to the site name, Colina Mariposa - Spanish for butterfly hill. Bald eagles, turkey vultures, northern harriers, red-tailed hawks, and ferruginous hawks also use the habitat here.



Approximately 1 mile of soft surface trail is accessible only from the adjacent neighborhood. In the future, the Fort Collins/Loveland paved trail is planned to traverse Colina Mariposa parallel to Shields Street.


5:00 a.m. 11:00 p.m.


Neighborhood access only. Colina Mariposa extends south from the intersection of Trilby Road and Shields Street. Colina Mariposa's approximate address is 901 West Trilby Road, Fort Collins.

Related Information

The Holyoke Homeowners Association has adopted this natural area, helping to keep it free of trash and litter. Thank you!