South Twin Lake (OR): Motor & Boating Rules
Deschutes County · near La Pine · managed by Oregon State Marine Board
- Gas outboard: NO
- Electric trolling: NO
- PWC / jet ski: NO
Quick answer
South Twin Lake is closed to motors of every kind. Gasoline outboards are banned here. Electric trolling motors are banned too. South Twin Lake in OR is closed to all boat motors, including electric trolling motors under Oregon State Marine Board regulations (verified July 14, 2026). Paddle power is your only option on this water. Rules change and local ordinances may add restrictions — always confirm with Oregon State Marine Board before you launch.
Rules at a glance
| Restriction class | No Motors Allowed |
|---|---|
| Horsepower limit | n/a |
| Electric trolling motors | NO |
| Gas outboards | NO |
| PWC / jet skis | NO |
| Wake rule | None listed for South Twin Lake |
| Hours rule | None listed for South Twin Lake |
| Zones | All of South Twin Lake, no zones listed |
| Managing body | State department of natural resources: Oregon State Marine Board |
| Official source | Oregon State Marine Board — oregonlegislature.gov |
| Last verified |
What this means in practice
Don't confuse this class with electric-only. On electric-only waters a trolling motor is the answer; here it is part of the violation. The distinction trips up more visitors to South Twin Lake than any other rule, because the two lake types often sit minutes apart in the same county.
Fishing South Twin Lake without a motor rewards different tactics: anchor along wind-blown banks instead of trolling, use the breeze as your trolling motor with a drift sock to slow the boat, and pick launch points so the paddle back is downwind at the end of the day.
Worth knowing about South Twin Lake: ORS 830.180(1) table entry (Deschutes County). Narrow exception in OAR 250-020-0091: on North and South Twin Lakes an electric motor may be used at slow-no-wake speed only when the operator has a disability or operates on behalf of a passenger with a disability; otherwise all motors are prohibited.
Common mistakes on No motors water
Assuming electric is exempt. It isn't: the no-motor listing for South Twin Lake covers trolling motors too — that is usually the whole point of the rule.
Planning big-water distances. Under paddle power, South Twin Lake fishes smaller than the map suggests. Pick a launch that puts your spots within honest paddling range.
Before you launch — verify
- Read the current regulation yourself: Oregon State Marine Board
- A two-minute call to the Oregon State Marine Board office for Deschutes County settles anything this page leaves open.
- This summary was last checked against the source on .
Rules change and local ordinances may add restrictions — always confirm with Oregon State Marine Board before you launch.
Frequently asked questions
Are gas motors allowed on South Twin Lake?
No. The listing closes South Twin Lake to all motors, gasoline included; only unpowered craft may operate. Verified July 14, 2026.
Can I use an electric trolling motor on South Twin Lake?
No — the no-motor listing covers electric too. On South Twin Lake that means human power only: paddles, oars, or a float tube's fins.
Are jet skis (PWC) allowed on South Twin Lake?
Jet skis are out on South Twin Lake. The lake's motor rule leaves no room for personal watercraft.
Who enforces boating rules on South Twin Lake?
Rule-making for South Twin Lake sits with Oregon State Marine Board (state department of natural resources), with possible additional ordinances from Deschutes County or local municipalities. On the water, expect enforcement from state boating officers and the county sheriff's marine unit alike.
Where do I verify the current rules for South Twin Lake?
Use the official document linked in the Sources section of this page — it is what this summary is based on — or go to Oregon State Marine Board directly. We last verified this page against the source on July 14, 2026.
Sources
- Controlling document (state statute): Oregon State Marine Board — oregonlegislature.gov
- Published and enforced by: Oregon State Marine Board
- Date of our latest source check: