Jumbo Reservoir State Wildlife Area
The campground is currently closed. Boat ramp construction has been ongoing with reopening expected in Spring 2026.
Tornado Warning issued June 30 at 8:22PM MDT until June 30 at 8:45PM MDT by NWS Denver CO
TORBOU The National Weather Service in Denver has issued a * Tornado Warning for... Northeastern Logan County in northeastern Colorado... Northwestern Sedgwick County in northeastern Colorado... * Until 845 PM MDT. * At 822 PM MDT, a severe thunderstorm capable of producing a tornado was located near Twin Buttes, or 28 miles northeast of Sterling, moving northeast at 35 mph. HAZARD...Tornado and two inch hail. SOURCE...Radar indicated rotation. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be damaged or destroyed. Damage to roofs, windows and vehicles will occur. Tree damage is likely. * Locations impacted include... Crook and Twin Buttes.
Severe Thunderstorm Warning issued June 30 at 8:10PM MDT until June 30 at 9:00PM MDT by NWS Denver CO
SVRBOU The National Weather Service in Denver has issued a * Severe Thunderstorm Warning for... Northeastern Logan County in northeastern Colorado... Northern Sedgwick County in northeastern Colorado... * Until 900 PM MDT. * At 810 PM MDT, a severe thunderstorm was located 5 miles northeast of Proctor, or 23 miles northeast of Sterling, moving northeast at 50 mph. THIS IS A DESTRUCTIVE STORM FOR CROOK, TWIN BUTTES. HAZARD...Baseball size hail and 70 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be severely injured. Expect shattered windows, extensive damage to roofs, siding, and vehicles. * Locations impacted include... Julesburg, Ovid, Sedgwick, Crook, Twin Buttes and Proctor.
Severe Thunderstorm Watch issued June 30 at 7:11PM MDT until July 1 at 1:00AM MDT by NWS Denver CO
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 426 IN EFFECT UNTIL 1 AM MDT WEDNESDAY FOR THE FOLLOWING AREAS IN COLORADO THIS WATCH INCLUDES 3 COUNTIES IN NORTHEAST COLORADO LOGAN PHILLIPS SEDGWICK THIS INCLUDES THE CITIES OF HOLYOKE, JULESBURG, AND STERLING.
About
Jumbo Reservoir State Wildlife Area encompasses 1,703 acres surrounding a plains reservoir in northeastern Colorado's Sedgwick County, at an elevation of 3,700 to 3,750 feet. The area offers warm-water fishing for species stocked in the reservoir, along with hunting opportunities for deer, dove, pheasant, rabbit, and waterfowl. Camping is permitted in designated numbered sites with one camping unit allowed per campsite. Facilities are basic but functional, with restrooms available and fire containment structures in camping areas. Dogs are welcome but must be leashed at all times except when actively hunting or if they are service animals. Quiet hours are enforced from 10 p.m. to 6 a.m., and a maximum of 250 vehicles are permitted on the property at any given time. Boating is permitted when the ANS (Aquatic Nuisance Species) inspection station is open; vessels must remain at least 50 feet from the outlet structure. Hand-launched and hand-powered vessels are allowed for fishing and waterfowl hunting after the inspection station closes for the season.
Directions
From I-76, take Exit 155 and head 3 miles north to Highway 138. Take Highway 138 northeast for 1 mile to County Road 95. Take CR 95 north for 2 miles to the reservoir.
Amenities
| Water | No |
| Fires Allowed | Yes |
| Toilets | Yes |
| Dump Station | No |
| Wifi | No |
| Pets Allowed | Yes |
| Showers | No |
| Electric Hookups | — |
| Water Hookups | — |
| Sewer Hookups | — |
| Camp Store | No |
Vehicle
| Max RV Length | — |
| Max Trailer Length | — |
| Big Rig Friendly | — |
| Pull Through Sites | No |
Contact
| Phone | +1 (970) 842-6300 |
Cell Service
| AT&T | Yes |
| Verizon | Yes |
| T-Mobile | None |
Useful Links
| CPW Jumbo Reservoir SWA |
Availability
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