Thin blue ribbons on a big brown landscape: Missouri River below Holter Dam |
It is so different out here in the Rockies. When it
comes to water, you don’t have to travel far to realize that scarce is the word.
Much of the region is high plains or desert, sitting in the rain shadow east of
big mountain ranges. Winter’s snow falls high up in these mountains, well away
from the population centers in lower elevation valleys. Extended drought
conditions in the region have brought its water scarcity into front-page focus.
These landscapes were transformed drastically thanks
to the modern marvel of irrigation. Beginning a hundred years ago, water
management essentially made this region inhabitable by modern standards. High-mountain
snowmelt captured in reservoirs is plumbed across vast landscapes of otherwise
arid land. Thus, cities and farmland thrive. This water management underlies
the agriculture economy that so much of the region depends upon.
Yellowstone’s reputation as a wildlife sanctuary is
well-known for its bison, grizzly, and wolf. Well-known, too, is its protection
of geysers and other geothermals. It turns out that it’s also a sanctuary for
rivers, sitting as it does atop the Continental Divide. Buffalo Bill Dam, for
example, sits on the east slope of Yellowstone National Park, less than forty
miles from the Park’s East Entrance. Built in the early 1900s on the North Fork
of the Shoshone, it was one of the first western reservoirs.
Hebgen Reservoir on the Madison, less than 20 miles from YNP |
Shoshone’s North Fork isn’t alone. Not far in any
direction beyond the Park’s boundaries, the rivers that begin in Yellowstone
are abruptly meet western water management.
The Madison, the forks of the Snake, the Gallatin all encounter dams or
irrigation diversions not far outside of the Park. The Yellowstone River alone is unique,
traveling uninterrupted for hundreds of miles before joining the Missouri in
eastern Montana. For this, it earns the reputation as the longest undammed
river in the lower 48.
Yellowstone River, undammed to Billings and beyond |
Under western water law, the water in rivers is
owned by someone; land owners and water districts. Under this ownership, a
river’s water gets diverted from the mother channel out into vast irrigation
districts where it is divided and divided again. In many cases, the diversions
are complete…the river’s natural channel becomes completely dewatered. The mighty
Colorado River is just a trickle by the time it reaches the Gulf of Mexico. Traveling
I-80 on the way home, I watched as the North Platte River, a huge tributary in
the Missouri River watershed, is completely dewatered by the time it reaches
western Nebraska. There, huge irrigation canals brim with water while the natural
channel is left dry and weed-filled.
In my time around Yellowstone, I have witnessed just
how complete the region’s plumbing system is. I accept the multiple uses that water serves in the
region for municipal water systems, agricultural irrigation, hydroelectric
power generation, as well as recreation and tourism. And, I fully appreciate
the terrific trout fishing that occurs just below many of these dams thanks to
their coldwater releases.
Diversion boards on Henry's Fork, 80% of channel blocked |
Nevertheless,
it is still shocking to a river lover and trout fisherman to see the plumbing
system up close, first-hand. One such revelation came in late September. I had
traveled west of the Park into Idaho a couple of hours to meet up with Phil and
Marg Carroll, former Michigan friends. We camped in an RV Park outside the town
of St. Anthony.
The fabled
Henry’s Fork of the Snake River passes right through downtown there. Henry’s
Fork is a Mecca for anglers who come from around the country and the world to
fish its storied waters. Harriman Ranch and Mike Lawson’s Flyshop in Last
Chance are just 35 miles upstream along US-20 from St. Anthony. An attractive
city park straddles the river in town, so I stopped for a look.
Irrigation canal at St. Anthony, unguarded by fish weir |
To my
astonishment, what must be 80-90% of the river’s water is diverted out of the
natural channel and into a huge irrigation canal. Trout were rising less than a
hundred yards upstream from the gaping maw of that canal, yet no weir prevents
fish from traveling downstream to perish out in the labyrinth of canals and
ditches irrigating the expanse of potato and hay fields. Here is where potatoes
trump trout. It reminded me of the popular t-shirt showing a big trout in a
sizzling skillet. The motto reads, “The End of the Rainbow.”
In July, Heidi
and I traveled to Glacier National Park for our anniversary. As we passed by Great
Falls Montana, we ventured downriver about ten miles to see what gave the city
its name, the Great Falls on the Missouri River. Lewis & Clark’s Corps of
Discovery in 1804 cited these falls as one of the most significant natural
features encountered on their epic expedition of the American West.
Great Falls on the Missouri, dwarfed by Ryan Dam |
We weren’t looking for trout fishing. After all, dams begin on the Missouri River more than a hundred miles upstream. All we wanted was to see a significant natural feature in the nation’s history, to feel the sense of place there. Well, the Great Falls are spared…but less than 100 yards upstream from the falls sits Ryan Dam, a huge hydroelectric dam. The visual impact is deflating. I don’t think that Meriwether Lewis would have approved.