Yellowstone
The Chadbourne Diversion
Published
13 years agoon
By Emily Stifler
In the early part of the 20th century, the Shields River Lower Canal Company built a four-foot tall, 10 inch wide concrete dam to provide water for an agricultural channel in the Shields River valley north of Livingston. Today, the Chadbourne Diversion still provides vital irrigation to working farms and ranches in the valley. But it’s in need of repair.
Over the years, the dam has also protected the migration and growth of the native Yellowstone cutthroat trout upstream. By limiting the incursion of rainbow, brown and brook trout into that watershed, it protected the native cutthroats’ habitat and genetic purity. Although brown trout and brook trout are threats to Yellowstone cutthroat trout in the Shields River watershed, they remain relatively secure because of the protection from rainbow trout.
As a result, the Shields remains a basin level stronghold for Yellowstone cutthroat trout. “That means we’ve got an intact watershed where the fish can move freely, not just isolated populations,” said Carol Endicott, a fish biologist with the FWP.
“We have 375 miles of interconnected stream that still support Yellowstone cutthroat trout. We don’t have that anywhere else in Montana,” she added.
Rainbows, which are abundant in the river below the diversion, pose the biggest threat to cutthroat because the two interbreed. If the diversion were to fail, it would open the “floodgates” for rainbows to move upstream, something that would be catastrophic for the cutthroat population in the Shields, Endicott said.
Endicott, working with another FWP biologist, Scott Opitz, and the agricultural shareholders in the Lower Shields River Canal Company, have received grant funding to repair and retrofit the Chadbourne Diversion. The structure would cost $1 million to replace, Endicott said.
“This project melds the interest of irrigated agriculture with fish conservation,” Endicott said. “The canal fed by the diversion delivers water to 13 farms and ranches – it’s essentially the lifeblood of their ranching and farming operations.”
As it stands now, during high water irrigators have to manually add headboards to back up the flow behind the structure to send water down the ditch. “It’s dangerous work,” Endicott said. “We’re looking at find a way to come up with a mechanical alternative that would not be so unsafe.”
And this spring, the stakes on the repair project were raised: With the high runoff, massive cottonwood trunks floating downstream knocked an eight-foot wide chunk out of the concrete, said Mike Dailey, a nearby landowner who holds Shields water rights. Dailey is Secretary and Treasurer of the Lower Shields River Canal Company, which currently maintains the diversion and is working on a temporary fix to the damaged part of the dam.
While repairing the structure following the irrigation season in 2012, Endicott’s team will first make the barrier impassable to fish swimming upstream. Then, they’d like to build a fish ladder with a “stock pen.”
During the trout spring migration season, FWP workers will sort the fish. If they’re cutthroat, they can go above the dam. If they’re rainbows, they’ll be returned to the river below. Other native species will also be passed over the dam, which will restore their historic migratory access.
While this isn’t the first time the FWP has built barriers to protect native fish, this project is unusual in that the barrier will have selective passage, Endicott said.
Megan Paulson is the Co-Founder and Chief Operating Officer of Outlaw Partners.
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We all are familiar with using a limited palette, but do you use one? Do you know how to use a
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We all are familiar with using a limited palette, but do you use one? Do you know how to use a limited palette to create different color combinations? Are you tired of carrying around 15-20 different tubes when you paint plein air? Have you ever wanted to create a certain “mood” in a painting but failed? Do you create a lot of mud? Do you struggle to achieve color harmony? All these problems are addressed in John’s workbook in clear and concise language!
Based on the bestselling “Limited Palatte, Unlimited Color” workbook written by John Pototschnik, the workshop is run by Maggie Shane and Annie McCoy, accomplished landscape (acrylic) and plein air (oil) artists,exhibitors at the Big Sky Artists’ Studio & Gallery and members of the Big Sky Artists Collective.
Each student will receive a copy of “Limited Palette, Unlimited Color” to keep and take home to continue your limited palette journey. We will show you how to use the color wheel and mix your own clean mixtures to successfully create a mood for your paintings.
Each day, we will create a different limited palette color chart and paint a version of a simple landscape using John’s directives. You will then be able to go home and paint more schemes using the book for guidance.
Workshop is open to painters (oil or acrylic) of any level although students must have some basic knowledge of the medium he or she uses. Students will be provided the book ($92 value), color wheel, value scale and canvas papers to complete the daily exercises.
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Please join the Arts Council of Big Sky for free music from Jacob Rountree at the Wilson Hotel Lobby Bar from 5-7 p.m.
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Please join the Arts Council of Big Sky for free music from Jacob Rountree at the Wilson Hotel Lobby Bar from 5-7 p.m. on April 24.
Jacob Rountree is an alternative/indie songwriter living in the stunning alpine of Montana. Contemplative yet playful, his lyric forward style is reflective of his love for philosophy, poetry and quantum physics.
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Trivia from 7 to 9 p.m. at The Waypoint in Town Center. Participation is free, food and beverages available.
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(Wednesday) 7:00 pm - 9:00 pm
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The Waypoint
50 Ousel Falls Rd