Gunlock State Park has issued an advisory for visitors due to flowing waterfalls and heavy debris in the water, a phenomenon driven by high runoff levels this season. The current conditions follow a period of significant runoff that began earlier in the year, including a notable flash flood event on Sept. 19, 2026.
Waterfalls and Safety Warnings
The Utah State Park system reported that the waterfalls at Gunlock State Park are currently flowing. According to state officials, these falls occur when the snowpack is expended and no longer sustains higher than normal flows in the Santa Clara River. Due to high amounts of runoff during this season, debris may accumulate near the top of the falls.
State officials issued a warning that recreating on the rocks near the waterfalls is dangerous. The advisory notes that rocks in the area are slick, the water is swift, and hazards exist within the pools. Visitors are strongly encouraged to use caution and remain observant while in the area.
Reservoir and Boating Conditions
In addition to the waterfall advisory, officials have issued a warning regarding floating debris in the reservoir. Boaters are advised to launch at their own risk due to the presence of this debris.
The park remains a year-round destination for visitors. While the waterfalls are seasonal, the park offers a mild winter climate and warm waters during the summer. Current water surface conditions are reported as open, and the launch ramp is also open for public use.
Quagga Decontamination Rules
Boaters using the reservoir must follow specific regulations regarding invasive species. All boaters are required to self-certify and follow all quagga rules and regulations before launching.
Currently, the park cannot perform quagga decontamination on-site. Officials recommend that visitors get their boats decontaminated before arriving at Gunlock State Park. Decontamination services are available at the port of entry south of St. George on I-15 or at the nearby Sand Hollow State Park.
Park History and Location
Gunlock State Park is located in southwestern Utah, 15 miles northwest of St. George. The park is situated in scenic red rock country and features Gunlock Reservoir, which was constructed in 1970 for irrigation water and flood control. The park has been open to the public as a state park since 1970.
The area has a long history, including the use of the Old Spanish Trail by horsemen and raiders from Santa Fe, New Mexico to Los Angeles from the 1820s until the goldfields became the destination after 1849.
Amenities and Activities
The park offers various amenities for visitors, including beach access, electricity, fire pits, and grills. Lodging options include cottages and RV sites. For those visiting for the day, the park provides picnic tables, shade shelters, and restrooms.
Activities available at the park include boating, fishing, hiking, equestrian activities, and picnicking. The park also offers amenities for junior rangers and OHV users. The park's hours are 7 a.m. to 10 p.m. daily, though boat ramp hours vary by season. From October through April, the boat ramp is open from 7 a.m. to 7 p.m.
Current Weather and Water Status
As of Nov. 2, 2026, weather conditions at the park include a high of 54°F and a low of 49°F. The sky is reported as clear. Current water temperatures at the reservoir are recorded at 58.1°F. Air quality is currently reported as good.
