Klamath Lake

Upper Klamath Lake  is a large, shallow freshwater lake east of the Cascade Range in south-central Oregon in the United States. The largest body of fresh water by surface area in Oregon, it is approximately 25 miles long and 8 miles  wide and extends northwest from the city of Klamath Falls. It sits at an average elevation of 4,140 feet.

In the early 20th century, most of the wetlands and marshes surrounding the lake were drained for agricultural purposes, damaging the larger habitat. The lake's water has been used to support the federal Klamath Project for irrigation by local farmers for a century. The lake depth fluctuates due to regulation of its water supply, averaging between 8 to 50 feet deep. The lake level is kept within 4,137 to 4,143 ft  above sea level to ensure a viable fishery in the lake and to protect coho salmon in the Klamath River below the lake.[3]

Upper Klamath Lake is fed by a watershed of 3,768 square miles  including the Williamson and Wood Rivers, and is drained by the Klamath River (known here as the Link River), which issues from the south end of the lake. The lake is connected by a short channel to the smaller Agency Lake to the north. The Upper Klamath National Wildlife Refuge has been established on land along the northern edge of the lake to preserve natural habitat.

The lake is very shallow, which produce spectacular bug hatches. The midge hatches on Upper Klamath Lake and Agency Lakes are a thing of legend. 




5 - 7 wt rods Rods under 5wt will not be allowed, fish are too large.


  • Rio InTouch RIO Gold
  • Rio InTouch Hover Fly Line
  • Rio InTouch CamoLux Fly Line


  • 3x - 5x Rio Fluoroflex Plus Tippet
  • Rio Powerflex Plus Leader - 2 Pack




 BH Mini Leech

Damsel Leech ZT

Callibaetis Nymph

Damsel Nymph - Size 10

Pine Squirrel Leech - Size 12

Scott's Damsel Bugger - Size 12

Zack Attack Damsel - Size 14

BH Hale Bopp Leech

TDF BH Miller's Electric Leech

TDF BH Black UV Leech


Frostbite Chironomid

Tungsten Zebra Midge

BH Flashback Pheasant Tail

Copper John

Holo Prince

Lightning Bug

Tungsten Anato-May


Rates  includes all terminal tackle (flies, leaders, etc.), beverages, fly rods/reels at no charge upon request.



All trout are released unharmed regardless of regulations.


Sample Itinerary

Meeting Time & Place: We typically meet at Crater Lake Travel Center

Length of the Day: Most full days conclude around 5:00pm. Half days end around 1:00pm



  • Shilo Inn - Klamath Falls
  • Sleep Inn & Suites
  • Running Y Resort
  • Lonesome Duck Ranch



  • Licenses can be purchased online from MyODFW, You must posses a valid fishing license.