archery and muzzleloader deer unit · South Dakota Game, Fish and Parks
Archery deer unit ER1 (East River)
South Dakota, United States
The map opens on this unit. Turn on Hunting units in Layers to see its boundary with public land, your pins and the forecast.
About Archery deer unit ER1 (East River)
Archery deer unit ER1 (East River) is a archery and muzzleloader deer unit in South Dakota, United States, set by South Dakota Game, Fish and Parks. It covers about 91,699 km² (35,405 mi²). Towns inside it include Sioux Falls, Aberdeen, Brookings, Watertown, Yankton and Mitchell.
HuntGrid draws its boundary from South Dakota Game, Fish and Parks's data for the 2026 season. The agency uses this unit system for White-tailed deer and Mule deer.
- Unit code
- ER1
- Area
- 91,699 km²
- Area (miles)
- 35,405 mi²
- Boundaries
- 2026
Public and protected land mapped inside it
HuntGrid's public land layers map about 3,123 km² of public or protected land inside it, 3% of the unit. Some protected land is privately owned (a conservation group's, for one). By manager, as the source names it:
| Manager | km² | Share |
|---|---|---|
| Unknown | 1,351 | 1% |
| Omaha | 977 | 1% |
| MCPHERSON COUNTY WATERFOWL PRODUCTION AREA | 85 | under 1% |
| Mcpherson County Waterfowl Production Area | 85 | under 1% |
| SAND LAKE NATIONAL WILDLIFE REFUGE | 79 | under 1% |
| Sand Lake National Wildlife Refuge | 79 | under 1% |
| Marshall County Waterfowl Production Area | 46 | under 1% |
| MARSHALL COUNTY WATERFOWL PRODUCTION AREA | 46 | under 1% |
| Other or unnamed managers | 1,172 | 1% |
Boundaries are approximate and aren't legal descriptions. Public land doesn't always mean you can hunt there: check your local regulations and posted signs.
Public land: U.S. Geological Survey (USGS) Gap Analysis Project (GAP), 2025, Protected Areas Database of the United States (PAD-US) 4.1
Seasons and regulations
Seasons for this unit that a person has checked against South Dakota Game, Fish and Parks's regulations:
| Species | Dates | Details |
|---|---|---|
| Mule deer | Sep 1, 2026 to Jan 1, 2027 | antlered, archery, residents source |
| White-tailed deer | Sep 1, 2026 to Jan 1, 2027 | antlered, archery, residents source |
| Mule deer | Nov 21, 2026 to Dec 6, 2026 | firearm, residents, draw source |
| Mule deer | Nov 21, 2026 to Dec 6, 2026 | firearm, draw, East River units 13L (Brule Bottoms and Pease GPAs and nearby Corps land), 59A (Sully County west of US-83), 59B (Sully County east of US-83) source |
| White-tailed deer | Nov 21, 2026 to Dec 6, 2026 | firearm, residents, draw source |
| White-tailed deer | Nov 21, 2026 to Dec 6, 2026 | firearm, draw, East River units 59A (Sully County west of US-83), 59B (Sully County east of US-83) source |
| White-tailed deer | Nov 21, 2026 to Dec 6, 2026 | firearm, draw, East River units 13L (Brule Bottoms and Pease GPAs and nearby Corps land), 59A (Sully County west of US-83), 59B (Sully County east of US-83) source |
The official regulations have the final word: check them before you hunt.
Units around it
Next to it in the same unit system
- Archery and muzzleloader deer unit ST1 (statewide except Custer State Park)
- Archery deer unit WR1 (West River)
Other hunting units that cover part of it
- Antelope unit PRA-38A (Buffalo, Hand, Hyde) (antelope hunting unit)
- Prairie turkey unit 40A (Beadle, Hand, Jerauld) (turkey hunting unit)
- Prairie turkey unit 48A (Marshall, Roberts) (turkey hunting unit)
- Antelope unit PRA-63A (Campbell, Potter, Walworth) (antelope hunting unit)
- Prairie elk unit ERA (East River) (elk hunting unit)
- East River zone (bobcat zone)
- High Plains Mallard Management Unit (duck zone)
- Low Plains middle zone (duck zone)
- Low Plains north zone (duck zone)
- Nonresident waterfowl unit NRW-00A
- Nonresident waterfowl unit NRW-00B
- Nonresident 3-day waterfowl unit NRW-00V (nonresident waterfowl unit)
- Nonresident 3-day waterfowl unit NRW-00X (private land only) (nonresident waterfowl unit)
- Nonresident 3-day waterfowl unit NRW-00Y (nonresident waterfowl unit)
- Nonresident 3-day waterfowl unit NRW-00Z (private land only) (nonresident waterfowl unit)
- Sandhill crane open unit (sandhill crane unit)
- Prairie (outside the Fire Protection District) (mountain lion zone)
- Tundra swan unit TSW-00A
- Dark goose Unit 1 (goose hunting unit)
- Dark goose Unit 2 (goose hunting unit)
What HuntGrid shows for Archery deer unit ER1 (East River)
- Its boundary on the map; tap inside it for the unit's card with the agency's regulations link.
- Public land and the other hunting units in the same view, each with its source.
- Season dates once a person has checked them, and legal shooting hours where the rule is checked.
- Hourly wind with a scent cone for every stand, and official weather alerts.
- Offline maps: download the area and use the map, your pins and the forecast with no signal.
Questions
How big is Archery deer unit ER1 (East River) (archery and muzzleloader deer unit)?
About 91,699 km² (35,405 mi²), as HuntGrid maps South Dakota Game, Fish and Parks's boundary.
How much public or protected land is in Archery deer unit ER1 (East River)?
HuntGrid's public land layers map about 3,123 km² of public or protected land, 3% of the unit; the largest share is managed by Unknown. Public land doesn't always mean you can hunt there.
Where are the season dates for Archery deer unit ER1 (East River)?
This page lists 7 seasons a person has checked against South Dakota Game, Fish and Parks's regulations; the official regulations have the final word.
Which units are next to Archery deer unit ER1 (East River)?
In the same unit system: Archery and muzzleloader deer unit ST1 (statewide except Custer State Park) and Archery deer unit WR1 (West River).
More on huntgrid.net
Sources
Unit boundary: South Dakota Game, Fish and Parks. Boundaries for the 2026 season.
HuntGrid isn't affiliated with South Dakota Game, Fish and Parks. The official regulations and maps have the final word.