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Natural Areas

Colina Mariposa Natural Area#

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Trail Status

Open without issues.


The Long View Trail connects Fort Collins and Loveland along Shields Street and provides access to Colina Mariposa and Hazaleus natural areas (City of Fort Collins), Long View Farm Open Space (Larimer County) and Sunset Vista Natural Area (City of Loveland).

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. 



Sheep on the Range, Colina Mariposa: by Jaime Yarbrough


Natural View, Colina Mariposa: by Jamie Yarbrough


Approximately 1 mile of soft surface trail is accessible from the adjacent neighborhood and a section of the Long View Trail provides access to Colina Mariposa. Long View Trail connects Fort Collins and Loveland parallel to Shields Street.


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


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.

Events and Activities#

  • Free educational activities and events in June-October are listed in the Natural Areas Explorer booklet guide.
  • Last minute activity additions, trail recommendations and events offered between November-May are in our free monthly electronic newsletter- sign up on this page.
  • Customized free educational programs at natural areas are available for groups, call the Master Naturalist Program at 970-224-6118 or email

Related Information#