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Tip of the month, December, 2000
River Ice
This month will be focusing on dog
travel, mostly ski-joring and crossing frozen rivers and not quite
frozen rivers and traveling on overflow.
Carol and cappy crossing an ice bridge in the Alaska
Range
Generally there isn't a whole of difference between crossing
an open area, going thru dense forest and crossing a river or
drainage. They all have their own sets of potential problems.
An open area in a high wind with with blowing snow or a ground
blizzard can be very intimidating, a forest can cut the wind,
but you have to deal with deadfall trees over the trail and after
a heavy snow, all the brush can create hard to travel tunnels
of willow and alder. Rivers allow you the chance to get wet breaking
thru the ice or having to cope with wet overflow.
Marriane getting on Champion creek in November
Overflow occurs after a river freezes up, it is
water forced up over the existing ice from below. This can happen
many ways, but a few of the most common are after a heavy snow,
this additional weight pushes the ice deeper into the water flowing
under the ice and that water is squeezed thru cracks and breaks
in the ice, where it is now free to flow over the top. Overflow
is also fairly common after an extended cold period, -40f or colder,
new ice is added to the existing ice which puts downward pressure
on the water forcing to the top. Also, normal ground water drains
out onto rivers as the ground freezes, it will usually travel
thru the snow until it finds a place to settle.
So, the first trick is getting on to a river or
creek, in the image above, Marrianne and Pepper gracefully slide
onto the ice, you have to know your skiing abilities, and your
dog, not only are you trying to control your skiis and dog, but
there is also a ski-jor line that always seems to be in the way.
Take your time. Metal edges on your skiis help a lot when on ice,
but unless you are a really good skier, its not recommended for
ski-joring, crashes with metal edged skiis and dogs can be very
harmful to the dog!
Ralph traveling down Champion creek on freshly frozen
overflow
Now that you are on the river your goal is to stay
upright, falls are painful. In the image above Ralph shows good
technique for traveling downstream under control, stay balanced
on you skis and have your poles ready to help out.
Crossing a small creek with a small hill.
Most dogs are not too concerned with ice / river
travel, but if your dog seems like they don't enjoy it, it is
better to let them off the line and and walk or ski across without
them attached, or if your skiing ability is not all that great
on ice, walk.
.
Dealing with open water while on river ice requires
your full attention, it can be very dangerous. Below, Ralph and
Hudson are traveling carefully around and small open stretch of
water. Know how thick the ice is and how deep the water is, thin
ice over 6 inches of water is not much of a hazard, but thin ice
over very deep water can mean death or injury to you or your dog
if it breaks while you are crossing. If you are not sure of the
ice check it out very carefully before crossing. Sometimes it
is better to go more upstream or downstream to avoid questionable
routes over ice.
Ralph crossing near open water
As the winter progresses, you will have many chances
to deal with ice and overflow ice, at some point your timing will
be just right and you will get to deal with it while there is
water standing or flowing over the ice. Generally the ice underneath
is no different than without the water, so travel in these wet
conditions is still safe, but very wet. You will have to decide
how to handle the crossing, whether to walk or ski and how wet
are you willing to get. Getting wet is not the end of the world,
but you need to know what you are getting into when you step into
the water. Factors to consider are the current air temp, distance
to your destination, the ability to dry you gear out once you
get to where you are going and you own attitude about being wet.
Sometimes it might be better to walk across and keep your skiis
from icing up, if this is the way you go, maybe try pulling out
a couple stuff sacs from your pac and slipping them on to slow
down the water from getting in, or carry a few trash bags to do
the same function, although these can be very slippery on the
ice. Just remember to get out and have fun and be safe!!!

Hoar frost on river ice
And to carry all your ski-jor gear out to the races or you
next trip, use the NEW Apocalypse Design,
" Carol's
Ski-Jor Bag" see it on the new
products page.
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