Ecology

Sunrise rising above the pine covered ridge at Reservoir Ridge Natural Area.

Fort Collins is a unique place, located where the mountains meet the plains. A remarkably rich diversity of native plants and wildlife can be seen in your local natural areas.


Fort Collins Ecosystems

Riparian Waterways

In an arid climate, water makes a big difference to plants and wildlife. Ribbons of green trees and shrubs line flowing waterways and ponds. Wildlife and humans flock to the shade, lush vegetation and life-sustaining water of this ecological zone. Seventy five percent of Colorado’s wildlife relies on a waterway (also known as riparian) ecosystem at some point in its life cycle making this a critical habitat to protect and treasure.

Shortgrass Prairie Grasslands

Grasslands aren’t always flat — they also encompass rolling hills, canyons, bluffs and expansive views of the sky and horizon. Some prairie wildlife lives underground and benefits from its moderated temperature and reliable shelter. The prairie is home to the endangered black-footed ferret and the conserved American bison, both of which were saved from the brink of extinction — making this a place of hope and restoration.  

The shortgrass prairie stretches from the Rocky Mountains to the Great Plains, covering areas from Canada to Mexico. About half of the shortgrass prairie has been lost to development. Thanks to Fort Collins voters, a piece of it is protected at Soapstone Prairie Natural Area. This land is home to rare plants and animals and is one of the few large, healthy grasslands left.  

Foothills

The foothills are the rises and ridges at the base of the mountains — a special ecological zone with unique plants and wildlife. The geologic layer beneath the foothills was pushed up with the Rocky Mountains and an ancient sea floor split. When you visit natural areas in the foothills ecological zone, look for evidence of 267 native wildlife species and 396 native plant species.


Wildlife

Mule deer carefully crossing a stream at Gateway Natural Area.

Natural areas are great wildlife habitat. If you are wildlife viewing, follow these safety guidelines: 

  • Keep your distance. Use binoculars to get a closer view. If a creature changes its behavior because of your presence, you are too close. 
  • Keep your dog on leash. Follow the B.A.R.K principles to keep you and the wildlife safe.   

Wildlife of the Shortgrass Prairie

Black-Footed Ferrets

Habitat: Black-footed ferrets are the only ferret species native to North America. They used to live all across the Great Plains, from Canada to Mexico. They depend almost entirely on prairie dogs for food and shelter. As prairie dogs have disappeared due to development and disease, so have ferrets. They’ve now been reintroduced in select places, including Soapstone Prairie Natural Area. 

Family Life: Ferrets mate in the spring and have about three to four babies (called kits) after a 42-day pregnancy. 

Conservation Need: To protect ferrets, we need healthy prairie dog colonies in large, connected areas. We also need to manage the spread of sylvatic plague which affects both ferrets and prairie dogs. 

Where can visitors see this species? Ferrets are most active at dawn and dusk. They live near prairie dog towns. At Soapstone Prairie, try looking along the Pronghorn Loop, southern Cheyenne Rim or Plover Trail (closed from April 1 to July 15). 

Laramie Foothills Bison Conservation Herd

Bison were reintroduced in 2015 to Soapstone Prairie Natural Area and Red Mountain Open Space through a partnership between The City of Fort Collins, Colorado State University (CSU) and Larimer County Department of Natural Resources. 

The herd roams across 2,700 acres and helps keep the prairie healthy. 

A Look Back:

Bison once roamed in the millions but were nearly wiped out by overhunting. The Laramie Foothills Conservation Herd bison are related to the Yellowstone National Park herd, and they carry special genetics. CSU scientists created disease-free bison using embryos, helping preserve their future. 

 How to See the Bison:

Visit Soapstone Prairie (open from March to November). You might spot bison from the Cheyenne Rim Trail or Bison Overlook. They roam a large pasture, so sightings aren’t guaranteed. Please stay on the trail. 

Why We Also Have Cattle at Soapstone Prairie: 

Cattle help mimic natural grazing patterns and add flexibility to how we manage the prairie. They graze seasonally and are kept separate from the bison with a special fence. 

Places to View Wildlife

Bobcat Ridge Natural Area

Key Habitats:

Grasslands, shrublands in the foothills and ponderosa pine forests

What You Might See:

Bobcat Ridge is home to elk, deer, black bears and mountain lions. Look for golden eagles, grasshopper sparrows and black-chinned hummingbirds. You might also catch a glimpse of wild turkeys or bobcats. Two species of concern in Colorado — the Moss’s elfin butterfly and Townsend’s big-eared bat — also live here.

Cathy Fromme Prairie Natural Area

Key Habitats

Shortgrass prairie and wetlands

What You Might See

Prairie dogs are common at Cathy Fromme Prairie and attract birds of prey such as bald eagles and hawks, especially during winter. You can enjoy a great view of raptors from the observation building on Shields Street, which is designed as a blind. Watch for horned lizards, ground-nesting songbirds, butterflies, rabbits, coyotes and foxes. Mountain lions may occasionally be seen, and rattlesnakes are fairly common. If you encounter a rattlesnake, stay calm — just give it space and allow it to move on or walk around it. 

Cottonwood Hollow Natural Area

Key Habitats

Human-made gravel ponds with gentle shorelines, plus wetlands

What You Might See

Cottonwood Hollow Natural Area is ideal for birdwatching, especially waterfowl like red-winged and yellow-headed blackbirds, egrets, herons, sandpipers, pelicans and killdeer. In upland areas, warblers, kingbirds and song sparrows often nest. You may also see painted turtles, foxes, muskrats and mule and white-tailed deer.

Pineridge Natural Area

Key Habitats

Shortgrass prairie, foothill shrublands, ponderosa pine forests and Dixon Reservoir with its nearby riparian forest

What You Might See

Pineridge Natural Area is a bird-watching hotspot, with over 150 bird species recorded. Look for waterfowl, pelicans, ospreys and bald eagles around the reservoir. Cottonwoods and willows provide nesting areas for songbirds like vireos and warblers. Red-tailed hawks nest in the pine trees, and mule deer are commonly seen in winter. Prairie dogs and other small mammals live here too, with occasional sightings of elk and mountain lions.

Soapstone Prairie Natural Area

Key Habitats

Healthy shortgrass prairie and foothill shrublands

What You Might See

You might see pronghorn, elk and deer at Soapstone Prairie. Swift foxes live in the area, but they’re rarely seen. Mountain lions, bobcats and bears have also been spotted. This prairie supports many grassland birds like burrowing owls, mountain plovers, longspurs, curlews, horned larks, lark buntings, sparrows and shrikes. Birds of prey include eagles, hawks, falcons, owls and harriers. Nesting raptors include golden eagles, ferruginous hawks, Swainson’s hawks, red-tailed hawks, prairie falcons and American kestrels.


Native Plants 

Macro of a bee landing on a milkweed bloom in Arapaho bend Natural Area

Did you know that Fort Collins Natural Areas are home to nearly one-third of all plant species found in Colorado? From vibrant wildflowers in the spring to hardy grasses swaying in the prairie winds, natural areas are rich with botanical diversity. 

Please enjoy the wild beauty of the plants in natural areas, but leave them as you find them — no collecting or gathering is allowed. Many animals rely on the plants conserved in natural areas for food and shelter; your care helps protect the entire ecosystem. 

Find The Right Plants for Your Landscape

Explore the City of Fort Collins Recommended Plant List, a searchable online database designed to help you find plants best suited to your specific yard conditions. Whether you're looking for drought-tolerant, pollinator-friendly or native species, this tool makes it easy to select sustainable plants that thrive in our local environment.

Why Native Plants Matter

Native plants are adapted to local soils and rainfall, making them low-maintenance and sustainable. They provide vital food, shelter for wildlife, and help restore natural ecosystems, even in urban yards.

Visit a Native Plant Garden

The Nix Native Plant Garden, located at the Natural Areas offices at 1745 Hoffman Mill Road, showcases a beautiful selection of Colorado’s native flora. Open weekdays from 8 a.m. to 5 p.m., it offers visitors a peaceful opportunity to learn about and appreciate plants adapted to our local environment.

Plant Lists for Each Natural Area Available

Plant lists are available upon request for each City of Fort Collins Natural Area, showcasing the diverse native species that support our unique ecosystems. These lists provide a valuable resource for learning about local plant communities and can guide restoration, education and landscaping efforts that help preserve Fort Collins’ natural heritage.

For more information or to request assistance with documents, please email naturalareas@fortcollins.gov or call 970-416-2815.