Friday, October 16, 2020

WALKRIGHT, Second Edition – CHAPTER FIVE Part 4: Bushwhacking

CHAPTER FIVE:  Bushwhacking

 

 

            “Any woman who does not thoroughly enjoy tramping across the country on a clear frosty morning with a good gun and a pair of dogs does not know how to enjoy life.”

            - Annie Oakley

 

 

            Winter Sleeping Gear

 

            For camping during winter it is better to use two three‑pound sleeping bags with one bag placed inside the other instead of a single six pound sleeping bag.  Both sleeping bags should have a polyester fill lining, such as Fiberfill ®, Polarguard ®, PrimaLoft ®.  Some winter campers place a mummy sleeping bag inside a rectangular sleeping bag.  The roomier rectangular bag accepts the mummy sleeping bag while allowing the sleeper movement and providing additional insulation.  The mummy bag opening closes tightly around the head, to help keep the body heat inside the sleeping bag.  The air space between the two sleeping bags provides another layer of insulation.  Using two sleeping bags instead of only one is another form of the layered clothing system.

            For use in more moderate temperatures, a light weight polypropylene sleeping bag liner can be placed in a mummy sleeping bag.  A Gore-Tex ® bivouac cover that fits over the sleeping bag forms a three-layer system providing insulation as well as protecting the bag from the effects of wind and precipitation, functioning much the same as wind pants and jackets or a tent.

            The points where your body’s weight compresses your sleeping bag’s insulation are places where body heat can drain out of your sleeping bag.  To block this loss of heat, place additional insulation between these compression points and the tent floor.  Winter campers use open or closed cell sleeping pads, or a combination of both.  A recent development now favored by many winter campers, is the Therm‑a‑rest ®, which is an open cell pad combined with a self-inflating air mattress.

            Avoid getting into your sleeping bag while you are wearing trail clothes, because they will probably be soiled and damp.  Usually it is best to remove all of your clothes and change into dry, clean, nightclothes.  Many winter campers like the warm comfort of insulated underwear or a jogging suit.  Some complete their sleep outfit with a pair of thick wool socks and a stocking cap.

            Getting into a cold sleeping bag can be a traumatic experience, as it takes some time for your body to warm up a sleeping bag.  One way to avoid this teeth chattering experience, if you are in a camp ground with access to electric power, is to place an electric heating pad in the sleeping bag.  After the sleeping bag has been warmed and before getting in the sleeping bag, for safety sake, you should turn off the heating pad.  Where electricity is not available, hot water bottles may be used to warm the sleeping bag while you are getting ready for bed.  By the time you get into your sleeping bag, it will feel much warmer.

 

 

            "It always rains on tents. Rainstorms will travel thousands of miles, against prevailing winds for the opportunity to rain on a tent."

            - Dave Barry

 

 

            Tents

 

            A tent is an absolute necessity for winter camping, protecting its occupants from two of the three key elements that lead to hypothermia: wind and precipitation, but not air temperatures.  Anyone who says tents are not needed for winter camping, because it does not rain very much during that season, is not playing with a full deck.

            While selecting a tent for winter camping, pick one large enough for the planned number of occupants, their sleeping bags, plus storage space for some of their gear.  Some experienced cold weather campers consider a 5 x 7 foot tent suitable for one person, a 7 x 9 foot tent for two persons, and an 8 x 10 foot tent for three persons.  An 8 x 10 foot tent is about the largest shelter you can transport on a winter trek unless you have the use of a dog or snowmobile towed sled.

 

 

            "The glories of a mountain campfire are far greater than may be guessed."

            - John Muir

 

 

            Tent Floor Insulation

 

            During cold weather, tent floors need to be insulated to prevent conductive heat loss.  One way to insulate a tent floor is to stomp down the snow in an area a little larger than that of your tent floor.  First, compress the snow while wearing your skis or snowshoes and then a second time only with your boots.  After the snow has been compressed, lay down a plastic tarp about the size of your tent floor upon the prepared snow and set the tent floor on top of that.  The plastic tarp acts as a water barrier to prevent melted snow from forming pools of water inside the tent.  Inside the tent, cover the floor with at least one more tarp, space blankets, or anything else with insulation value.  Remember that insulation is found in both thickness and layers.

            Your tent also needs a waterproof tent fly or tarp to cover the tent roof and sides as well as the rear window and front door.  This cuts down on heat loss radiating from the roof of the tent and also prevents snow from falling directly onto the warmer tent roof, where it could melt and later freeze, coating the tent roof with ice.

            While tents provide some protection from the effects of wind and precipitation, it does not provide warmth.  You produce your own body heat and the tent helps you preserve it.  However, many winter campers would prefer sleeping in a heated tent.  A heated tent not only warms a camper, but also dries the sleeping bags and clothing, and prevents frost from forming inside the tent.  A warm tent also provides a place to relax, protected from the constant winter cold.  Because most winter camping trips last only two or three nights, a catalytic type heater is often the most reasonable heat source for these short winter camping trips.  Catalytic heaters are generally adjustable with a BTU output ranging from 3,000 to 8,000.  Burning at 5,000 BTU, a catalytic heater with a three quart tank keeps a tent warm from early afternoon to late the next morning.  Although the catalytic heater does not give off poisonous fumes, the tent should be well ventilated to prevent over consumption of the available oxygen.  Some campers, in order to be on the safe side, turn their heater off at night, before getting into their sleeping bags, and restart it again in the early morning.  For the sake of safety these heaters should be fueled and started outside of the tent.  It does not take a very long time for a catalytic heater to warm up a tent interior.  Besides, by turning the heater off at night, the fuel supply lasts longer.

            An easy way to be the tent “hero” is to rise before the others and take the heater out of the tent and restart it before bringing it back into the tent.  It is so much easier to get out of a sleeping bag in a warm tent.  Your tent mates will appreciate your efforts.

            On longer winter trips, where it may not be possible to carry enough liquid fuel, wood burning stoves are the most practical of tent heaters.  Many different types of portable models are available, such as the Sheepherder, and the Airtight.  To use a wood burning stove in a tent, adjustments must be made to the tent with protective heat resistant asbestos collars on both the tent and its fly.  These are to accommodate the stove pipe and protect the fabric from its heat.

            Keep your tent doors zipped up during the day as well as at night even in the dead of winter as small animals can be a problem in a tent.  If they can’t find food, they may chew clothing or paper items.

 

 

            “Things will get really screwed up, right?”
            “Erm...maybe.”
            “Maybe, like how?”
            “Ever wanted to go sledding in the Mojave Desert?”
            - Julie Kagawa, The Iron Daughter

 

 

            Sleds

 

            Since winter camping often requires more clothing, equipment, and supplies than can or should be backpacked, a sled is a good choice for gear hauling.  Place the cargo in plastic bags to be placed inside Duluth packs or duffel bags.  Cover these with a tarp (which may have a number of functions besides covering sled cargo) and attach the tarp to the sled with rubber tie downs.  For hauling gear for two or three day outings, a six‑foot plastic toboggan is adequate.  For longer trips or with bulky gear, a larger sled may be needed.  There are some excellent fiberglass models that are based on European designs.

            To pull the sled, run line or shock cord through a pair of two inch diameter, six foot long pvc tubes.  Use hooks to attach one end of both cord to the sled and the other end to the waist belt of your backpack.  This makes a rigid harness that prevents the sled from sliding into you when moving downhill.  With most of your gear in the sled, all you need to carry in your pack are some trail necessities, such as supplementary clothing, an insulated container of warm drink, and some high calorie food that you can eat right out of the package.  Be sure to pack out the empty packages.  We don’t need any more litter in our outdoors.

 

 

            “The woods are lovely, dark and deep...”

            - Robert Frost

 

 

            Winter Campsites

 

            The ideal cold weather campsite is one that because of vegetation and topography provides some shelter from winter winds and precipitation.  When the ground is frozen and snow covered, you can make sheltered winter camps deep inside dense stands of low land conifers such as spruce and fir that screen campsites from winter winds.  In these conifer stands there is often an abundance of small standing, dead trees available for firewood.

 

 

            “Now I see the secret of making the best person, it is to grow in the open air and to eat and sleep with the earth.”

            - Walt Whitman

 

 

            Snow Shelters

 

            The Eskimo igloo is the most recognized type of snow shelter.  However, these structures require considerable construction skill and experience, as well as an ample supply of hard wind packed snow that is not found in most places.  On the other hand, a quinzhee is a snow shelter that is made by hollowing out a mound of loose snow and is comparatively easy to make.  For a three person shelter, it takes a snow mound about eight to ten feet high and about twelve to sixteen feet in diameter.

            As the pile settles, the snow crystals bond together to form what is called sintered snow.  To judge the height and diameter, place a pole of correct length from top to bottom through the center of the mound.  After the pile settles for one to two hours, you can start to hollow it out.  The quinzhee walls should range in thickness from about eight inches at the top of the dome to about sixteen inches at the base.  Sticking twigs into the pile helps you measure the wall’s thickness at various points.

            For best protection from winter winds, you should construct the quinzhee in a low land conifer forest where thick stands of spruce and fir form a wind break and where there are abundant supplies of snow.  The typical lakeside summer camp site is too exposed to the weather to make it a good winter campsite.

            To hollow out a quinzhee, experienced builders find that full sized, long-handled snow shovels are more effective tools than the shorter handled models.  When digging out a quinzhee, wear a rain suit or your clothes will get very wet.  The entrance to the chamber should be just big enough to enter, while digging with your shovel.  A plastic sled is useful in removing the snow from the quinzhees interior.

            Once the major portion of the excavation has been completed with the shovel, the interior can be finished using any scraping device such as an aluminum plate.  Once the chamber is completed, sealing the entrance with blocks of sintered snow is possible.

            For additional comfort, use snow to build a sleeping platform inside the quinzhee.  For greater warmth, the platform should stand slightly above the top of the entrance.  Because the warmer air in the quinzhee rises, your raised sleeping platform will automatically be in a warmer air zone.  Candles placed in wall alcoves provide heat as well as romantic light.

 

Note:  Imagine if you and your group find yourselves in a flat plain or valley without natural wind breaks.  Wind breaks are bushes, trees, or rock outcrops such as the boulder-strewn hill, named the Devils Den at the Gettysburg Battlefield.  Also, imagine that the snow is too shallow to dig into.

At these events, a snow wall may be your best option.  This type of shelter is for an emergency, one night stay that will only be needed for a few hours.  You build a three foot or one meter tall snow wall; long enough to protect you are your group from the wind.  The wall is built between you and the direction of the prevailing winds.  Such walls become a wind break for your camp that is much better than sitting totally exposed.  Sheltered from the wind, the wind chill on your body can increase the apparent ambient temperature by 20 to 30 degrees or more.  Thus, by simply blocking the cold wind by a snow wall, you will feel much warmer.


No comments:

Post a Comment