Horsetooth Rock Loop

Dog-friendly hike near Fort Collins · Horsetooth Mountain Trailhead, County Rd 38E (2.5 mi west of the South Bay entrance), Fort Collins

Illustration of Front Range foothills trail

Illustration of the region, not this trail.

Dogs on this trail

Dogs and other pets must be on leash at all times throughout the open space; loose dogs may be impounded.

Source: Larimer County Natural Resources · checked 2026-10-24. Rules change; confirm before you go.

  • Distance5 mi
  • Elevation gain1411 ft
  • Leash ruleLeash required
  • Water on trailSpring Creek near Horsetooth Falls; otherwise carry water
  • SeasonYear-round; icy on the summit scramble in winter, hot by late morning in summer
  • ParkingLot reaches capacity on weekends and holidays; arrive before 9 a.m. or after 3 p.m. in summer (webcam on the county page)
  • FeeLarimer County daily entrance permit required (buy at the kiosk or online); annual permits available
  • RestroomsVault toilets at the trailhead
  • Managed byLarimer County Natural Resources

Horsetooth Rock is Fort Collins' signature hike and a reliable dog outing if your dog can handle 1,400 feet of gain and a short rock scramble at the top (many owners stop at the saddle below the final blocks). The 5-mile loop climbs service road and singletrack through mountain shrub and ponderosa with views over the reservoir and out to the plains. Larimer County is leash-only and rangers patrol. The lot is the crux: it fills early every weekend. Combine with the Horsetooth Falls spur for water in spring. Rattlesnakes and summer heat are the main hazards; there is little shade above the first mile.

Need a sitter while you summit?

Independent Fort Collins boarders and daycares can send free quotes. One short form, no obligation.

Dog boarding in Fort Collins Daycare in Fort Collins

After the hike

Odell Brewing Co.

800 E Lincoln Ave, Fort Collins, CO 80524

Well-behaved leashed dogs are welcome on the patio; dogs are not allowed inside the taproom except while buying beer, and the brewery posts occasional dog-free event dates.

  • patio

Fort Collins · verified 2026-10-24

New Belgium Brewing – Liquid Center

500 Linden St, Fort Collins, CO 80524

Well-behaved dogs and other pets are allowed in the Liquid Center tasting room on a six-foot hand-held leash, but not on brewery tours; staff may ask stressed dogs to take a break.

  • indoor ok

Fort Collins · verified 2026-10-24

More trails near Fort Collins

All dog-friendly hikes near Fort Collins → · Fort Collins dog guide