Ouch, Lost Dad....that's brutal.
Have a bit more time now to add some more thoughts~
A few thoughts on booties.
I've experimented with many over the years, and lost quite a few.
For your Aussie, Sierra, or any dog that tends to ball ice in the feet -- a few tips.
Keep the fur between the feet trimmed -- this helps somewhat with snow accumulation, and keeps your floors at home cleaner, too. Conditioning to accept gentle handling of feet first, then progressing slowly to allowing the fur on the bottom and between the pads to be trimmed with scissors. It doesn't have to be pretty to be helpful.
Of all the boots I've tried for snow/ice balling issues, these are by far the best I've found:
http://www.ultrapaws.com/Ultra-Paws-Rugged-Dog-Boots/productinfo/303R/
They have two velcro binding straps and this seems to be what keeps them on. The one downside to these (or any boot) I've tried for winter use is that after a period of hours (usually six or more), the boots become wet, they then freeze in shapes that are quite deformed and this concerns me as I feel it can potentially lead to injury as the dog must alter its gait to compensate.
For summer use, in the Presidential Range from Washington northward above treeline we use Ruffwear Griptrex rock booties. Both of my dogs have sustained painful paw pad tears and abrasions in the Northerns. Some dogs do OK there, but the vast majority do not, so I strongly advise thier use. I've found them several times at LL Bean Outlet in Concord for about $10-$15 for a set of four, a bargain. I do not recommend thier use in snow as they fall off more easily and get lost.
http://www.sierratradingpost.com/ru...tm_campaign=PCGOOGLEPLA2&codes-processed=true
A few thoughts on leashing...I believe Ed n Lauky are using (or have used) a skijorring tug line with bungee shock absorber and quick release that I recommended to them some years ago. This is a workable option for those with dogs that are under good voice control and whom are not likely to pull thier owner's off balance. Bearing in mind that you are effectively short-roping with your dog under these conditions, care must be taken for both you and your dog's safety.
It went something like this and attached to a belt harness on the handler and canicross xback harness on the dog:
http://alpineoutfitters.net/Secure/scripts/prodList.asp?idCategory=24
I cringe when I see dogs dragging leads because I've seen a dog snag the hand loop end of a leash on a protruding root and nearly hang itself from a ledge. If I were to allow a dog to drag a line, I would purchase a standard six to eight foot length of cotton rope or cut the hand loop off a leash so there would be no chance of snagging.
Now to collars..choke chains pose a significant choking/hanging concern as the heavier end of the chain hangs lower on the dog and can be snagged.
Hydration, hydration, hydration.
All of the things we have learned over the years come from our own experience or the experiences of others. Safety and fun are my top priorities. Training and conditioning a dog such that they know what to expect as well as what is expected of them, as well as developing your own awareness of your dogs needs (as opposed to your "wants" or his/her percieved "desires") all build a connection of joy and friendship and lead to a long lifetime of hiking enjoyment.
Happy hiking, and enjoy your new friend.
Sabrina