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Broadcasts: November 12, 8:30 p.m. [OPB TV], November 15, 1:30 a.m. [OPB TV], November 15, 6:30 p.m. [OPB TV], May 5, 8:30 p.m. [OPB TV], May 8, 1:30 a.m. [OPB TV], May 8, 6:30 p.m. [OPB TV]


A geologic mystery in the Cascades captivates tourists heading over Santiam Pass. Lost Lake has two holes, acting like bathtub drains but where does the water go? Join us also for the Maryhill's "Festival of Speed", a gravity sports festival attracting racers from around the world, and Tenkara, an ancient simple form of fly-fishing from Japan.

Segments in this Episode

Water | NW Life | Environment | Oregon Field Guide

Lost Lake Disappears Down 3 Holes Into Subterranean River

OPB | Nov. 12, 2015 8:30 p.m.

A lake in the Cascades has several holes in it that look and act like bathtub drains.  

Oregon Field Guide

Gravity Sports at World Cup Maryhill Festival of Speed

OPB | Nov. 12, 2015 8:30 p.m.

Find out why hundreds of downhill skateboarders and street lugers from around the world travel to Maryhill Loops Road for high-speed downhill racing.

Recreation | NW Life | Oregon Field Guide

Tenkara Popularity Grows in U.S. As Anglers Try Japanese Fly-fishing

OPB | Nov. 12, 2015 8:30 p.m.

Ancient, simple fly-fishing from Japan called Tenkara becomes popular in the U.S.

All Season 27

Backyard Habitat & 2nd-Graders at the Bay (2713)

Oregon Field Guide: Episode #2713
Most Recent Broadcast: March 24, 2016

Buzz Holmstrom & 1 Million Plants In A Year (2712)

Oregon Field Guide: Episode #2712
Most Recent Broadcast: February 25, 2016

Swan Transplants & Alvord Gliders (2711)

Oregon Field Guide: Episode #2711
Most Recent Broadcast: February 18, 2016

Pika, Monarchs & Milkweed and Invasive Species BBQ (2710)

Oregon Field Guide: Episode #2710
Most Recent Broadcast: February 11, 2016

Discovering Valhalla: Oregon's Hidden Gorge (2709)

Oregon Field Guide: Episode #2709
Most Recent Broadcast: February 4, 2016

Christmas Ships, Waterfall Hunters & Moving Meacham Creek (2708)

Oregon Field Guide: Episode #2708
Most Recent Broadcast: November 19, 2015

Hole in the Lake, Gravity Sport and Tenkara (2707)

Oregon Field Guide: Episode #2707
Most Recent Broadcast: November 12, 2015

Sea Lions and Oyster Meroir (2706)

Oregon Field Guide: Episode #2706
Most Recent Broadcast: November 5, 2015

Desert Frogs, Halfway Calendar and Snowkiting (2705)

Oregon Field Guide: Episode #2705
Most Recent Broadcast: October 29, 2015

Urban Beavers, Dam Removals, Sandcastle Contest and Photogeology Tour (2704)

Oregon Field Guide: Episode #2704
Most Recent Broadcast: October 22, 2015

Cormorant vs. Salmon Pasta Seed Pods, Could a Mushroom Save a Honeybee & Lighthouse Photoessay (2703)

Oregon Field Guide: Episode #2703
Most Recent Broadcast: October 15, 2015

Wildlife Crossings, Behind-the-Scenes Mt. St. Helens Glacial Cave & Sand Labyrinth (2702)

Oregon Field Guide: Episode #2702
Most Recent Broadcast: October 8, 2015

Unprepared: An Oregon Field Guide Special (2701)

Oregon Field Guide: Episode #2701
Most Recent Broadcast: October 1, 2015


Major Support Provided By: Dorothy D. Gage

Additional Support Provided By: the Coit Family Foundation, Fred and Clara Dolen Charitable Foundation, Kay Kitagawa and Andy Johnson-Laird, Christine and David Vernier, and the Greenfield/Hartline Habitat Conservation Fund of the Nature Conservancy.

Special thanks for support by: The Roundhouse Foundation, Jon and Nancy Decherd, Bonnie and Peter Reagan