We made an afternoon trip to the South Fork Boise River on August 21 to observe the effects of the Elk Fire.

Prairie Road with burned area south of the descent into Cow Creek

Since the aerial photos that came in Monday were of the South Fork from Reclamation Village to Indian Point (or Indian Rock for some of you) our trek was for the downstream section from Cow Creek bridge to Danskin Bridge.

Lower Cow Creek where the fire burned through

The drive descending Cow Creek showed many sections not affected by fire while the hillsides had burned.  The photo above shows near the end of cow creek where it enters the valley bottom the fire burned through the trees and took the brush and grasses.

Cow Creek Riparian Restoration sign from 1992

Long hidden in the brush was the commemorative sign of the Cow Creek riparian restoration project from 1992.  What is left of the wording and logos is ash burned on to the medal sign.  The logos for Trout Unlimited, Forest Service and Boise Valley Fly Fishers are still visible.  The beer bottle was not placed there for the photo.  Indeed, cans and bottles are now revealed in many locations where the brush burned, exposing litter from long ago.

View downstream from Cow Creek Bridge

From the vantage point of the Cow Creek bridge the conditions downstream look largely unaffected along the river.

Prairie Road from the Cow Creek bridge approach

In this area the Prairie Road appears to have served as a fire break.  The right edge of the photo shows the edge of the burn down the hill side.

Meadow along braided section

The unburned section (at least as observed from the road) reaches more than a mile.  Despite the area being open since only 5:00 p.m. on Tuesday, by Wednesday afternoon there was already an RV and drift boat settled in at campsite 121Q, also known as the meadow, where the multiple channels join together.  UPDATE 8/23/13:  Actually only the road is open but an area closure on the Forest Service lands is still in effect.

Downstream of 121R campsite

Things get more interesting as one moves downstream past the 121R campsite, also known to some as the “Dead Deer Hole.”  The photo above looks back upstream through a section of stream bank where the brush burned through to waters edge.

Here is a nice close up of the burned area along the river, looking upstream.  In the background the unbuned riparian areas are evident.  Some patches burned and others did not.

Granite Creek culvert

Just downstream of 121R the little stream of Granite Creek meets the South Fork.  But not before it goes through a 36″ diameter culvert under the South Fork road.  The photo above shows the relatively small culvert, a concern given that the watershed as seen in the photo below, appears to have burned over.

Granite Creek watershed

Granite Creek could be a ticking time bomb for the South Fork.  A heavy rain on this watershed could cause a gully washer and if the culvert gets plugged the flood could take out the road.  The amount of sediment that will go to the South Fork is going to go up from this watershed.  The question is how much and what can be done to control erosion.  Fortunately the Forest Service is attuned to these immediate after effects from a fire and will be scouting the burned area for vulnerable locations.

Rock garden and Pine Tree Hole

Immediately downstream of the confluence of Granite Creek and the South Fork is the section known as the Rock Garden followed by the Pine Tree Hole.  The photo above represents the fire effects in a microcosm showing much of the brush burned completely, some with less severe burn, and some riparian brush that is still green.  The trees also exhibit different fire effects where some of the pine trees in the foreground were probably killed by the fire while others in the background appear to be in a position to survive.  In the distance the iconic ponderosa pines at the Pine Tree Hole pullout appear to have made it.

Below the Pine Tree Hole

Areas downstream of the Pine Tree Hole show more of the fire damage is upslope from the river, where many of the conifers burned, some also will survive.

Looking upstream from the Danskin Rock Shelter

Further downstream the juxtaposition of fire effects on upslope v. riparian areas is more evident.  Here, one of the pines on the south side nearly all brown but the others upstream appear in better shape.

Pierce Creek watershed

Then we got to Pierce Creek.  Site of the major investment in a new bridge that made possible Pierce Creek to be reconnected to the South Fork of the Boise River, the watershed appears to have a significant amount of fire.

USGS gage

One casualty of the fire is the stream gage that USGS had installed on Pierce Creek.

Pierce Creek bridge and South Fork road

Volunteers who helped plant around the area around the bridge over Pierce Creek may be pleased to learn that their efforts are not lost to fire as the vegetation in that area escaped the severe fire effects observed in the foreground where the grass and brush turned to ash and where the trees and willow burned along the creek.

Pierce Creek watershed from the Prairie Road

Further up in the watershed the view from the Prairie Road makes evident the fire effects across the watershed.  Reports from the first day of the wildfire had stated the burn went up House Mountain, the highest peak in the photo above.

Actions to lessen the erosion into Pierce Creek and to recover the watershed will be a focus of future efforts.  These efforts are needed to secure the investment in the Pierce Creek bridge that has opened this watershed to the South Fork of the Boise River.  This website will continue to update interested readers as government agency plans are formed to address the near term rehabilitation actions.

The 3rd Annual Fly Casting Tournament is set for May 11, 2013, at Eagle Island State Park.

The cause remains the same: conservation of the South Fork Boise River wild trout fishery.

A day of competition and camaraderie begets conservation.  Sponsored by the Ted Trueblood Chapter of Trout Unlimited, the Fly Casting Tournament attracts more than 100 participants plus an equal number of judges and spectators.  All are there for the cause of the South Fork Boise River fishery.  You can join in the event through participating on a team or as a spectator.  Check out the Tournament webpage here.

Just as this website tries to demonstrate the number of different agencies and groups involved in the South Fork Boise River, the Fly Casting Tournament is also a showcase of cooperation.  Some examples:

The Boise Valley Fly Fishers has become over three years the single largest financial contributor to the Fly Casting Tournament, and therefore to the South Fork Boise, by being a Gold Sponsor and fielding several fly fishing teams.

Last year BVFF fielded a Gold team including notables like Marty Downey, Tom Labreque, Craig Estell and Gino White.  The club also put two teams in the Silver division.

As the longest continuing fly fishing club in the Boise area the BVFF have time and again stepped up for the South Fork Boise River.  And their presence at the Fly Casting Tournament is evident.

A stand out contributor to the event is Idaho Angler.  In their third year as a Gold Sponsor the fly shop has helped provide cash donations, prize winnings as well as great connections for putting together teams.

Shop owner Rick Williams helped with the original course design in 2011.

With the 20-year anniversary of the store being celebrated on May 4, the week prior to the Fly Casting Tournament, it’s a good time to reflect how this business has become an establishment specialty shop with professional staff who know the South Fork Boise River.

Not to be surpassed is the support from Anglers fly shop and owner John Wolter.

John has great customer connections which brought more fly casting teams to the tournament than any one else, and Anglers provides Gold Sponsor support with financial and merchandise contributions.  John has established credibility not only with the Anglers shop but also with informed insight how to fish the South Fork Boise River during the summer.  We’re not going into details here so you will have to ask him yourself.

The success of the first Fly Casting Tournament in 2011 contributed the funds that made possible the completion of the Pierce Creek reconnection to the South Fork of the Boise River. A culvert is gone, a new steel bridge crosses Pierce Creek and wild trout have access to tributary spawning habitat.

The 2nd Annual Fly Casting Tournament in 2012 kick-started the focus on flow management of the South Fork Boise River and in late summer 2012 the first assessment was made of the effects on juvenile trout and on the macroinvertebrate community when the river flows are decreased. Results from this work will be released this summer.

Work will continue in 2013 and following years to assess river flows on fish stranding with the goal of finding a flow management that can improve the fishery.  The 3rd Annual Fly Casting Tournament will be a critical piece to funding the conservation work on the South Fork Boise River.

Idaho Fish and Game biologist Joe Kozfkay came to the January 9th meeting of the Ted Trueblood Chapter of Trout Unlimited with an update on the South Fork Boise River fishery, showing the 2012 trout population appears stable or increasing depending on fish size.

As manager of the Southwest Idaho Region’s fisheries Kozfkay came loaded with data and historical information in his Powerpoint slide show.  And he explored many facets of this river resource we all cherish.  Over the next few posts we will break down the information.  This update looks at the overall population densities for the latest samping efforts.

Like any good drama, the results were held until towards the end of the presentation, but it was well worth the wait as Continue Reading…