Map

May Park Ditch

Fishing spots, fishing reports, and regulations in

Oregon, United States

5.0·3 catches

Top fish species at May Park Ditch

App Section

Check which species have trophy potential in May Park Ditch

May Park Ditch fishing reports

fish catches icon
recently logged catches
Loading...

Northern pikeminnow

18 in · 3 lb

fish catches icon
recently logged catches
Loading...

Spotted bass

length · weight

fish catches icon
recently logged catches
Loading...

Chinook salmon

length · weight

Fishbrain
Have you been fishing here?

Log your catch and check out other catches from the community in the Fishbrain app.

Loading...
Loading...
Loading...

General info

May Park Ditch is a lake located in Union County, Oregon, United States. It is most popular for fishing Chinook salmon, Northern pikeminnow, and Spotted bass.

Location

45°20′31.1″N 118°03′32.6″W
Directions

Amenities

Fishing regulations at May Park Ditch, OR

Disclaimer: Always check local fishing regulations, water access rights and land ownership before fishing, regardless of any catches logged in that area by the Fishbrain community. Fishbrain has mapped millions of acres of government-owned land across the USA to help you identify potential fishing access, but you are responsible for ensuring compliance with all legal requirements.

Fishing regulations in Oregon can change throughout the year. Make sure to check this page before fishing for the most up to date rules and regulations for the current season. Local regulations govern when you can fish, the max size of the fish you can keep, how many fish you can keep, and more.

Below you will see fishing regulations for catching Chinook salmon as of April 1st, 2026. To view regulations for a different fish species, please click on your preferred species in the drop-down.

Chinook salmon

Seasons

Open

Bag limit

0

Measurement

Total Length

Exceptions to Northeast Zone Regulations

Aldrich Ponds

  • 2 trout per day, 8 inch minimum length.

Big Sheep Creek

Mouth to Little Sheep Cr

  • Open all year for trout.
  • 5 hatchery rainbow trout per day.
  • Wild rainbow trout must be released.
  • Open for hatchery steelhead Jan 1 - Apr 30 and Sep 1 - Dec 31.
  • Use of bait allowed.

Butter Creek and Tributaries

  • Open all year.
  • Use of bait allowed.

Catherine Creek

Mouth to Hwy 203 bridge above Catherine Cr State Park

  • Open for hatchery steelhead Jan 1 - Apr 30 and Sep 1 - Dec 31.
  • Use of bait allowed.

Deer Creek (Wallowa Co.)

Mouth up to marker approx. 0.2 Mi

  • Closed.

Grande Ronde River

State Line to Clark Creek Rd. (Elgin)

  • Open all year for trout.
  • 5 hatchery rainbow trout per day.
  • Wild rainbow trout must be released.
  • Open for hatchery steelhead Jan 1 - Apr 30 and Sep 1 - Dec 31.
  • Open for coho salmon Sep 1 - Nov 30, 2adult coho salmon and 5 jack coho salmon per day.
  • Use of bait allowed.

Clark Creek Rd. to Hilgard State Park

  • Open all year for trout.
  • Open for hatchery steelhead Jan 1 - Apr 30 and Sep 1 - Dec 31.

Granite Creek and Tributaries

  • Closed

Imnaha River

The following apply to open sections below: *

  • Open all year for trout.
  • 5 hatchery rainbow trout per day.
  • Wild rainbow trout must be released.
  • Hook-gap size may not exceed 3/8 inch May1 - Aug 31.
* Mouth to Big Sheep Cr
  • Catch-and-release for bull trout.
  • Open for hatchery steelhead Jan 1 - Apr 30 and Sep 1 - Dec 31.
  • Use of bait allowed.
* Above Big Sheep Cr. to Confluence of North and South Forks
  • Catch-and-release for bull trout.

John Day River

Mainline railroad bridge to North Fork

  • Open all year for hatchery steelhead.
  • Open all year for bass, catfish, and other warmwater fish.
  • Use of bait allowed.
  • Closed from ODFW marker ¼ Mi below Tumwater Falls to 200 ft above the falls near the head of John Day Arm, except for warmwater fish.

North Fork to Indian Cr

  • Open for hatchery steelhead Jan 1 - Apr 30 and Sep 1 - Dec 31.
  • Use of bait allowed.

Above Indian Cr

  • Use of bait allowed.

John Day River, Middle Fork

Mouth to Hwy 395 bridge

  • Open for hatchery steelhead Jan 1 - Apr 30 and Sep 1 - Dec 31.
  • Use of bait allowed.

Above Hwy 395 bridge

  • Use of bait allowed.
  • Hook-gap size may not exceed 3/8 inch.
  • Closed from Hwy 7 to Summit Cr.

John Day River, North Fork

Mouth to Hwy 395 bridge

  • Open for hatchery steelhead Jan 1 - Apr 30 and Sep 1 - Dec 31.
  • Use of bait allowed.

Hwy 395 bridge to USFS North Fork

Campground

  • Use of bait allowed.
  • Hook-gap size may not exceed 3/8 inch.

Above North Fork Campground

  • Use of bait allowed.

La Grande Reservoir and Upstream Tributaries

  • Open May 22 - Oct 31.
  • 2 rainbow trout per day, 8 inch minimum length.
  • Artificial flies and lures only.

Little Sheep Creek

Within the fenced boundary of the hatcheryfacility

  • Closed.

Lookingglass Creek and Tributaries

  • Hook-gap size may not exceed 3/8 inch.
  • Closed between 300 ft below Jarboe Cr and 200 ft above the hatchery water intake (0.4Mi).

Lostine River

Mouth to confluence of the East and WestForks

  • Hook-gap size may not exceed 3/8-inch.

McKay Creek

  • Open all year for trout.

McKay Reservoir

  • 5 bass per day, only 1 bass over 15 inches may be harvested.

Meadow Creek

Forest boundary to Smith Cr Rd crossing

  • Closed.

Morgan Lake

  • Open Apr 22 - Oct 31.

Prairie Creek (Wallowa Co.)

  • Use of bait allowed.

Spring Creek and Pond (Wallowa Hatchery)

Between Fish Hatchery Rd crossings

  • Closed.

Umatilla River

The following apply to open sections below: *
  • 2 trout per day, 8 inch minimum length.
  • 2 adult and 5 jack hatchery spring Chinook salmon per day.
  • 3 adult fall Chinook salmon, coho salmon, or hatchery steelhead in aggregate per day and 5 jack salmon.
  • Open all year for warmwater fish.
* Hwy 730 bridge to Threemile Dam
  • Open for hatchery steelhead Jan 1 - Apr 30 and Sep 1 - Dec 31.
  • Open for hatchery spring Chinook salmon Apr 16 - Jun 10.
  • Open for coho and fall Chinook salmon Sep1 - Nov 30.
  • Use of bait allowed.
* Threemile Dam to CTUIR reservation boundary (approx. 0.7 mi above Hwy 11 bridge)
  • Open for hatchery steelhead Jan 1 - Apr 30 and Sep 1 - Dec 31.
  • Open for hatchery spring Chinook salmon Apr 16 - Jun 30.
  • Open for coho and fall Chinook salmon Sep1 - Nov 30.
  • Use of bait allowed.

Umatilla Indian Reservation

  • Tribal angling permits required on the Umatilla Indian Reservation (541) 276-3165* Above CTUIR reservation
  • Use of bait allowed up to Ryan Cr (approx. 550 ft), artificial flies and lures only above Ryan Cr.
  • Hook-gap size may not exceed 3/8 inch.

Walla Walla River and Tributaries

  • Hook-gap size may not exceed 3/8 inch.

Wallowa Lake

  • 25 kokanee per day in addition to other trout catch limits. No size limits.

Wallowa River

  • Open all year for trout.
  • 5 hatchery rainbow trout per day.
  • Wild rainbow trout must be released.
  • Open for hatchery steelhead Jan 1 - Apr 30 and Sep 1 - Dec 31, from mouth to Trout Cr.
  • Use of bait allowed.

Wenaha River

Mouth to Crooked Cr

  • Catch-and-release for bull trout.
  • Open for hatchery steelhead Jan 1 - Apr 30 and Sep 1 - Dec 31.

Crooked Cr to confluence of the North and South forks

  • Catch-and-release for bull trout.

Willow Creek Reservoir

  • 5 bass per day, only 1 bass over 15 inches may be harvested.
  • 25 crappie per day.

Willow Creek and Tributaries

  • Open all year.
  • Use of bait allowed.

Closed to angling for wild salmon in all waters unless noted by species under location exceptions.


There is no annual limit on hatchery salmon or hatchery steelhead so long as the appropriate number of Hatchery Harvest Tags have been purchased to record the catch.

Angling restricted to artificial flies and lures in streams. See location exceptions where use of bait is allowed.


For more information please see Oregon General Statewide Regulations

Chinook, Oncorhynchus tshawytscha

Exceptions to Northeast Zone Regulations

Aldrich Ponds

  • 2 trout per day, 8 inch minimum length.

Big Sheep Creek

Mouth to Little Sheep Cr

  • Open all year for trout.
  • 5 hatchery rainbow trout per day.
  • Wild rainbow trout must be released.
  • Open for hatchery steelhead Jan 1 - Apr 30 and Sep 1 - Dec 31.
  • Use of bait allowed.

Butter Creek and Tributaries

  • Open all year.
  • Use of bait allowed.

Catherine Creek

Mouth to Hwy 203 bridge above Catherine Cr State Park

  • Open for hatchery steelhead Jan 1 - Apr 30 and Sep 1 - Dec 31.
  • Use of bait allowed.

Deer Creek (Wallowa Co.)

Mouth up to marker approx. 0.2 Mi

  • Closed.

Grande Ronde River

State Line to Clark Creek Rd. (Elgin)

  • Open all year for trout.
  • 5 hatchery rainbow trout per day.
  • Wild rainbow trout must be released.
  • Open for hatchery steelhead Jan 1 - Apr 30 and Sep 1 - Dec 31.
  • Open for coho salmon Sep 1 - Nov 30, 2adult coho salmon and 5 jack coho salmon per day.
  • Use of bait allowed.

Clark Creek Rd. to Hilgard State Park

  • Open all year for trout.
  • Open for hatchery steelhead Jan 1 - Apr 30 and Sep 1 - Dec 31.

Granite Creek and Tributaries

  • Closed

Imnaha River

The following apply to open sections below: *

  • Open all year for trout.
  • 5 hatchery rainbow trout per day.
  • Wild rainbow trout must be released.
  • Hook-gap size may not exceed 3/8 inch May1 - Aug 31.
* Mouth to Big Sheep Cr
  • Catch-and-release for bull trout.
  • Open for hatchery steelhead Jan 1 - Apr 30 and Sep 1 - Dec 31.
  • Use of bait allowed.
* Above Big Sheep Cr. to Confluence of North and South Forks
  • Catch-and-release for bull trout.

John Day River

Mainline railroad bridge to North Fork

  • Open all year for hatchery steelhead.
  • Open all year for bass, catfish, and other warmwater fish.
  • Use of bait allowed.
  • Closed from ODFW marker ¼ Mi below Tumwater Falls to 200 ft above the falls near the head of John Day Arm, except for warmwater fish.

North Fork to Indian Cr

  • Open for hatchery steelhead Jan 1 - Apr 30 and Sep 1 - Dec 31.
  • Use of bait allowed.

Above Indian Cr

  • Use of bait allowed.

John Day River, Middle Fork

Mouth to Hwy 395 bridge

  • Open for hatchery steelhead Jan 1 - Apr 30 and Sep 1 - Dec 31.
  • Use of bait allowed.

Above Hwy 395 bridge

  • Use of bait allowed.
  • Hook-gap size may not exceed 3/8 inch.
  • Closed from Hwy 7 to Summit Cr.

John Day River, North Fork

Mouth to Hwy 395 bridge

  • Open for hatchery steelhead Jan 1 - Apr 30 and Sep 1 - Dec 31.
  • Use of bait allowed.

Hwy 395 bridge to USFS North Fork

Campground

  • Use of bait allowed.
  • Hook-gap size may not exceed 3/8 inch.

Above North Fork Campground

  • Use of bait allowed.

La Grande Reservoir and Upstream Tributaries

  • Open May 22 - Oct 31.
  • 2 rainbow trout per day, 8 inch minimum length.
  • Artificial flies and lures only.

Little Sheep Creek

Within the fenced boundary of the hatcheryfacility

  • Closed.

Lookingglass Creek and Tributaries

  • Hook-gap size may not exceed 3/8 inch.
  • Closed between 300 ft below Jarboe Cr and 200 ft above the hatchery water intake (0.4Mi).

Lostine River

Mouth to confluence of the East and WestForks

  • Hook-gap size may not exceed 3/8-inch.

McKay Creek

  • Open all year for trout.

McKay Reservoir

  • 5 bass per day, only 1 bass over 15 inches may be harvested.

Meadow Creek

Forest boundary to Smith Cr Rd crossing

  • Closed.

Morgan Lake

  • Open Apr 22 - Oct 31.

Prairie Creek (Wallowa Co.)

  • Use of bait allowed.

Spring Creek and Pond (Wallowa Hatchery)

Between Fish Hatchery Rd crossings

  • Closed.

Umatilla River

The following apply to open sections below: *
  • 2 trout per day, 8 inch minimum length.
  • 2 adult and 5 jack hatchery spring Chinook salmon per day.
  • 3 adult fall Chinook salmon, coho salmon, or hatchery steelhead in aggregate per day and 5 jack salmon.
  • Open all year for warmwater fish.
* Hwy 730 bridge to Threemile Dam
  • Open for hatchery steelhead Jan 1 - Apr 30 and Sep 1 - Dec 31.
  • Open for hatchery spring Chinook salmon Apr 16 - Jun 10.
  • Open for coho and fall Chinook salmon Sep1 - Nov 30.
  • Use of bait allowed.
* Threemile Dam to CTUIR reservation boundary (approx. 0.7 mi above Hwy 11 bridge)
  • Open for hatchery steelhead Jan 1 - Apr 30 and Sep 1 - Dec 31.
  • Open for hatchery spring Chinook salmon Apr 16 - Jun 30.
  • Open for coho and fall Chinook salmon Sep1 - Nov 30.
  • Use of bait allowed.

Umatilla Indian Reservation

  • Tribal angling permits required on the Umatilla Indian Reservation (541) 276-3165* Above CTUIR reservation
  • Use of bait allowed up to Ryan Cr (approx. 550 ft), artificial flies and lures only above Ryan Cr.
  • Hook-gap size may not exceed 3/8 inch.

Walla Walla River and Tributaries

  • Hook-gap size may not exceed 3/8 inch.

Wallowa Lake

  • 25 kokanee per day in addition to other trout catch limits. No size limits.

Wallowa River

  • Open all year for trout.
  • 5 hatchery rainbow trout per day.
  • Wild rainbow trout must be released.
  • Open for hatchery steelhead Jan 1 - Apr 30 and Sep 1 - Dec 31, from mouth to Trout Cr.
  • Use of bait allowed.

Wenaha River

Mouth to Crooked Cr

  • Catch-and-release for bull trout.
  • Open for hatchery steelhead Jan 1 - Apr 30 and Sep 1 - Dec 31.

Crooked Cr to confluence of the North and South forks

  • Catch-and-release for bull trout.

Willow Creek Reservoir

  • 5 bass per day, only 1 bass over 15 inches may be harvested.
  • 25 crappie per day.

Willow Creek and Tributaries

  • Open all year.
  • Use of bait allowed.

Regulations for

45°20′31.1″N 118°03′32.6″W
Regulations in the map
License Icon
Local laws and licenses

Oregon fishing license

Get license

Reviews of May Park Ditch

5.0
Loading...

2 ratings

5
4
3
2
1
Top reviews

Cities nearby

La Grande

1.8 miles away

Pendleton

43.5 miles away

Walla Walla

51.8 miles away

Hermiston

68.3 miles away

Kennewick

79.9 miles away

Pasco

81.3 miles away

Richland

88.1 miles away

Lewiston

88.9 miles away

West Richland

93.0 miles away

Pullman

105.2 miles away

Ontario

105.3 miles away

Moscow

108.6 miles away

Grandview

108.7 miles away

Othello

115.2 miles away

Sunnyside

115.4 miles away

Toppenish

130.0 miles away

Caldwell

136.0 miles away

Moses Lake

136.4 miles away

Eagle

138.9 miles away

Nampa

142.0 miles away

Meridian

144.9 miles away

Garden City

146.1 miles away

Yakima

147.5 miles away

Boise

150.3 miles away

Anything missing or inaccurate?

Suggest changes to improve what we show.

Suggest changes

FAQ about May Park Ditch fishing

May Park Ditch is a lake located in Union County, Oregon, United States. Its coordinates are:
45°20′31.1″N 118°03′32.6″W
.
Find the best fishing spots on May Park Ditch by looking at where other anglers have caught fish. This can easily be done in the where it is also possible to see big fish potential and how good fishing is right now along with Garmin® depth maps.
The most common species in May Park Ditch are:
The latest May Park Ditch fishing reports are:
App Section
Download Fishbrain and fish smarter
Unlimited access to the best fishing spot finder in the game. Get all the fishing intel you need to start catching more, and bigger, fish.

Free trial available

Loading...
Loading...
Loading...
Loading...