Twin Sisters SWA: hunting rules and access
Twin Sisters SWA is 640 acres of State Wildlife Area in Colorado, in game management unit 20. CPW lists deer, dusky (blue) grouse and elk for it, and prints no restrictions of its own for the property beyond who may enter.
| Kind | State Wildlife Area |
|---|---|
| Game management unit | 20 |
| Size | 640 acres |
| Coordinates | 40.2676, -105.5139 (middle of the boundary CPW maps) |
| Map | Open Twin Sisters SWA on the map |
| Among CPW properties in unit 20 | The largest of 6 by the acres on CPW's pages, 35% of their 1,804 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, Dusky (blue) grouse, Elk.
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
None printed on the property's page.
In CPW's regulations
The regulations for CPW properties carry no section of their own for this one. The rules that apply to every State Wildlife Area still apply.
Read it at the source before you go
The rules above are CPW's words, copied from CPW's page for Twin Sisters 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 20, around Twin Sisters SWA
- Elk in unit 20, 2024: 875 hunters in all seasons took 355 elk, 41% success (2023: 49% from 822 hunters). The rifle seasons alone: 721 hunters, 42%. Unit 20 elk by season
- Deer in unit 20, 2024: 1,994 hunters in all seasons took 811 deer, 41% success (2023: 41% from 1,895 hunters). The rifle seasons alone: 1,681 hunters, 44%. Unit 20 deer by season
- Unit 20: 1,206 square miles in Larimer, Boulder and Weld Counties, 24.1% national forest and 0.1% BLM land, from 4,900 to 12,400 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.
2026 elk and deer rifle hunt codes for unit 20
| Season | 2026 dates | Legal shooting light here, opening day | Elk codes | Deer codes |
|---|---|---|---|---|
| 1st rifle | Oct 14 to Oct 18 | 6:42 AM to 6:53 PM | E-M-020-O1-R bull | |
| 2nd rifle | Oct 24 to Nov 1 | 6:53 AM to 6:39 PM | E-F-020-O2-R cow E-M-020-O2-R bull | D-F-020-O2-R doe D-M-020-O2-R buck |
| 3rd rifle | Nov 7 to Nov 15 | 6:09 AM to 5:22 PM | E-F-020-O3-R cow E-M-020-O3-R bull | D-F-020-O3-R doe D-M-020-O3-R buck |
| 4th rifle | Nov 18 to Nov 22 | 6:21 AM to 5:13 PM | E-F-020-O4-R cow E-M-020-O4-R bull | D-F-020-O4-R doe D-M-020-O4-R buck |
A code valid in the unit is not permission to hunt this property: the property's own list and restrictions decide that. Legal light is half an hour before sunrise to half an hour after sunset at the coordinates above, on the Colorado clock; the state's printed table is the rule. Archery, muzzleloader, late and private-land codes are on the unit pages: unit 20 elk, unit 20 deer.
Nearest CPW properties to Twin Sisters SWA
| Property | Distance | Direction | Mapped acres | Unit |
|---|---|---|---|---|
| Lon Hagler SWA | 20.6 miles | east | 302 | 20 |
| Boedecker Reservoir SWA | 21.3 miles | north-east | 432 | 20 |
| Eagle Canyon STL | 21.4 miles | north-east | 633 | 20 |
| Sawhill Ponds | 23.1 miles | south-east | 208 | 29 |
| Willow Creek Reservoir SWA | 23.6 miles | west | 206 | 18 |
Straight-line miles between the middles of the boundaries CPW maps, not road miles. A property can be much nearer at its edge.
More CPW properties in unit 20
Big Thompson Ponds SWASimpson Ponds SWA
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.