Cattle at Black Rock Spring, Granite Mountain Open Allotment, Wyoming. Photo by Mike Hudak. The region surrounding Black Rock Spring is still a functioning wetland although it is threatened by cattle grazing.


Cattle sinking into humus of wetland, Black Rock Spring, Granite Mountain Open Allotment, Wyoming. Photo by Mike Hudak.
Cows, weighing from 800 to 1,000 pounds, have far more difficulty than I walking across this wetland because their hooves punch into the spongy humus. Eventually, permanent depressions are formed with the intervening ground becoming “hummocks.”


Wetland at Black Rock Spring, Granite Mountain Open Allotment, Wyoming. Photo by Mike Hudak.
Although little open water is present at the wetland, moisture is abundant in the soil. Walking upon it reminded me of being on a waterbed.

Cattle-made depressions, many filled with water, are seen across the landscape.


Hummocks at Black Rock Spring, Granite Mountain Open Allotment, Wyoming. Photo by Mike Hudak. Here at Black Rock Spring large hummocks have already formed at the perimeter of the wetland where water is less abundant. Areas such as this, which have been heavily grazed by cattle for many decades, have little vegetation remaining from which to form new humus. Eventually, after more years of grazing, so much humic material may be eroded away that the wetland will dry up and lose its functionality.


The wetland at Black Rock Spring has not yet suffered the extensive damage inflicted upon the wetland at Buffalo Creek in the western region of the allotment. The following photos near UTM coordinates 0265619/4727435 demonstrate some additional consequences of cattle grazing.




Bank shearing by cattle at Buffalo Creek, Granite Mountain Open Allotment, Wyoming. Photo by Mike Hudak.
Cattle that drink from the creek have contributed to widening the channel by shearing the banks with their hooves.


Hummocks at Buffalo Creek, Granite Mountain Open Allotment, Wyoming. Photo by Mike Hudak.      Desiccated hummocks at Buffalo Creek, Granite Mountain Open Allotment, Wyoming. Photo by Mike Hudak.
The wetland near the creek is pockmarked with hummocks made by hooves of cattle. This lower elevation portion of the wetland is at least marginally functional as the hummocks retain some moisture.      Farther from the creek at higher elevation the hummocks are drier as indicated by the white alkali residue. At this stage only a small percentage of humic material remains to retain moisture. If intense grazing continues, the entire wetland will suffer the same fate.




Downcutting of Tin Cup Creek, Granite Mountain Open Allotment, Wyoming. Photo by Mike Hudak.
Tin Cup Creek, with its stabilizing vegetation removed yearly by cattle, has sharply downcut from its original channel as seen at the top of the photo. If such grazing continues the downcutting and widening will work their way up the stream. Photo at UTM coordinates 0265619/4727435.


In the southeastern region of the allotment Buffalo Creek flowing from cattle-free private land shows how productive this landscape would be without cattle. Within the allotment, though, the combined effects of prolonged drought and many decades of cattle grazing have devastated the region’s wildlife habitat. The following photos were taken west of UTM coordinates 0270565/4716135.


Cattle by creek, Granite Mountain Open Allotment, Wyoming. Photo by Mike Hudak.
Cattle remain near Buffalo Creek because it’s the only available water. Consequently, they’ve consumed most of the forage in the surrounding area leaving behind easily erodible exposed soil.


Fenceline contrast: cattle-trampled creek, Granite Mountain Open Allotment, Wyoming. Photo by Mike Hudak.
Buffalo Creek, entirely stripped of vegetation, has become a wide, stinking mud puddle.


Fenceline contrast: calf by boundary fence. Granite Mountain Open Allotment, Wyoming. Photo by Mike Hudak.
Despite many years of drought the cattle-free private land abounds with vegetation.


Fenceline contrast: starving cow at fence. Granite Mountain Open Allotment, Wyoming. Photo by Mike Hudak. A starving cow makes a desperate attempt to reach grass on the ungrazed side of the fence.




Cow and dead calf. Granite Mountain Open Allotment, Wyoming. Photo by Mike Hudak.
Cattle share in the tragedy of this landscape as this mother attempts to revive her dead calf.







Text and Photos © 2004– by Mike Hudak, All Rights Reserved