

Best for intermediate divers, 1-61m, shore entry, mild current.
Horsetooth Reservoir is a high-altitude freshwater site featuring artificial reef structures that descend from 1 to 61 metres. Divers and snorkellers access the water from the shore. Conditions include mild currents that can strengthen, with visibility ranging from 2 to 10 metres. The site is characterised by significant thermoclines and cold water temperatures, particularly at depth. Divers must manage gas and bottom time carefully due to the depth and potential for overhead environments. Boat traffic is a consistent hazard throughout the season. On-site facilities include a dive shop, parking, toilets, showers, and changing rooms to assist with preparation and post-dive rinsing.
40.58253, -105.16852
Trust your compass as there is a large amount of iron at various places which can upset readings.
Located west of Fort Collins. Access via County Road 38E. Scuba diving is permitted at South Bay Swim Area, Lower Sunrise, and on weekdays at Dixon, Quarry, and Orchard Coves.
Recorded at this site
Depth
Up to 61m
Visibility
2-10m
Skill Level
Intermediate
Entry
Shore
Current
Mild
The site features depths ranging from 1 to 61 metres.
No, the site is rated for intermediate skill levels due to the significant depth, cold water, and potential for overhead environments.
Yes, entry to the water is via the shore.
Yes, the site is open to both diving and snorkelling activities.
Hazards include boat traffic, cold water, thermoclines, entanglement risks in artificial structures, and potential overhead environments.
Diving at Horsetooth Reservoir in Fort Collins requires the following certifications: Certified Instructor For Classes. Always dive within your training limits.
Horsetooth Reservoir in Fort Collins typically has mild currents that most divers can handle comfortably.
Visibility at Horsetooth Reservoir in Fort Collins typically ranges from 2 metres to 10 metres. Conditions vary with weather, tides, and seasons.