Jumbo Reservoir (Julesburg) SWA: hunting rules and access
Jumbo Reservoir (Julesburg) SWA is 1,703 acres of State Wildlife Area in Logan and Sedgwick Counties, Colorado, in game management unit 90. CPW lists deer, dove, pheasant, rabbit and waterfowl for it, and its rules for the property run to 24 lines: 11 on its page for the property and 13 in its regulations.
| Kind | State Wildlife Area |
|---|---|
| Counties | Logan and Sedgwick |
| Game management unit | 90 |
| Size | 1,703 acres |
| Coordinates | 40.9320, -102.6522 (middle of the boundary CPW maps) |
| Map | Open Jumbo Reservoir (Julesburg) SWA on the map |
| Among CPW properties in unit 90 | The largest of 4 by the acres on CPW's pages, 36% of their 4,761 acres together |
| CPW's page read | October 8, 2026 |
A State Wildlife Area has its own rules on top of the statewide season rules. How the kinds of public land differ.
What CPW lists for hunting here
Deer, Dove, Pheasant, Rabbit, Waterfowl.
Fishing, as CPW lists it: Fishing Opportunities, Warm Water.
A species on this list is one CPW names for the property. It still needs an open season, the right license for the unit, and nothing in the restrictions below against it on your dates.
Who may enter
A valid hunting or fishing license OR SWA pass is required for everyone 16 or older accessing this state wildlife area.
Restrictions on CPW's page for this property
- Note that the $43 annual access permit requirement has been removed. Anyone age 16 or older must now have a valid hunting or fishing license, or the new Colorado State Wildlife Area Pass to access this property, and all other SWAs.
- A. Maximum of 250 vehicles on property at once.
- B. Hunting from frozen surface of lake prohibited.
- C. Discharging firearms or bows allowed only while hunting.
- D. Launching and use of vessels is allowed only if ANS inspection station is open; vessels prohibited within 50 feet of outlet structure.
- E. Waterskiing prohibited 7 p.m.-10 a.m., Fri-Mon of Memorial Day weekend.
- F. Hand-launched and hand-powered vessels allowed only for fishing, to set or pick up decoys, or to retrieve downed waterfowl after ANS inspection station closes for the year, or until reservoir frozen.
- G. All loud noises that disturb the peace, except legal hunting activities, prohibited from 10 p.m.- 6 a.m.
- H. Camping is allowed in designated areas in numbered sites. One camping unit is allowed per campsite.
- I. Fires allowed within containment structure in designated camping areas.
- J. Dogs must be under control and on leash by handler, except service animals or when actively hunting, training for hunting or during licensed field trials.
In CPW's regulations
- a. Property is limited to 250 vehicles.
- b. Hunting is prohibited from the frozen surface of the lake.
- c. Discharge of firearms or bows is prohibited, except while hunting.
- d. Launching and use of all vessels is allowed.
- e. Waterskiing is prohibited from 7:00 p.m. - 10:00 a.m., Friday through Monday of Memorial Day weekend.
- f. Vessels are prohibited within 50 feet of outlet structure.
- g. Launching of motorized vessels or sailboats is prohibited if the Aquatic Nuisance Species (ANS) inspection station is closed.
- h. Hand-launched and hand-powered vessels shall only be used for fishing, to set-up/pick- up decoys or retrieve downed waterfowl after the ANS inspection station closes for the year or until the reservoir is frozen.
- i. Camping is allowed in designated areas in designated number sites.
- j. One camping unit is allowed per campsite.
- k. Quiet hours will be enforced from 10:00 p.m. - 6:00 a.m. Legal hunting activities are except from quite hours.
- l. Fires are allowed within a containment structure in designated camping areas.
- m. Dogs are allowed but must be kept under control on a physical leash by the handler at all times except as authorized in #900(C)(15).
From CPW regulations, chapter W-9 (Wildlife Properties), 2 CCR 406-9, dated July 16, 2026.
Read it at the source before you go
The rules above are CPW's words, copied from CPW's page for Jumbo Reservoir (Julesburg) SWA as it read on October 8, 2026 and from the regulations for CPW properties. CPW can change them or close the property at any time, signs on the ground count, and a rule that names a season moves with that season each year.
Unit 90, around Jumbo Reservoir (Julesburg) SWA
- Elk in unit 90, 2024: 5 hunters in all seasons took 0 elk, 0% success (2023: 0% from 3 hunters). The rifle seasons alone: 5 hunters, 0%.
- Deer in unit 90, 2024: 42 hunters in all seasons took 21 deer, 50% success (2023: 37% from 76 hunters). The rifle seasons alone: 39 hunters, 54%. Unit 90 deer by season
- Unit 90: 374 square miles in Logan and Sedgwick Counties, 0% national forest and 0.1% BLM land, from 3,500 to 4,400 feet.
Colorado Parks and Wildlife survey estimates for the whole unit, private land included. They are not figures for this property, and whether elk or deer may be hunted here is in CPW's list above.
Nearest CPW properties to Jumbo Reservoir (Julesburg) SWA
| Property | Distance | Direction | Mapped acres | Unit |
|---|---|---|---|---|
| Red Lion SWA | 1.7 miles | south | 1,117 | 90, 92 |
| Red Lion Ranch STL | 3.4 miles | south | 191 | 92 |
| Duck Creek STL | 7.2 miles | south-west | 652 | 90 |
| Duck Creek SWA | 7.8 miles | south-west | 1,130 | 90 |
| Sedgwick Bar SWA | 8.5 miles | east | 895 | 92 |
Straight-line miles between the middles of the boundaries CPW maps, not road miles. A property can be much nearer at its edge.
All 721 State Wildlife Areas and State Trust Lands
Have a tag for this fall?
A FilledTag plan checks the rules of any CPW property it uses against your species and your dates, and gives you one exact plan: where to park, camp and sit, with every pin checked against public land and road rules.