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Silica Gel Thanks for the response. Concerning the disposable packets, is there a way to determine if they are used up? How about methods for recharging the re-useable gel in the field: Without an oven, that is. How'd you determine that they collected 10oz. of water a month? What quantity were...

I've heard that there are severe limitations when using alkaline batteries in near-freezing conditons. Does anyone know if NiMH or Lithium Ion batteries perform better in more extreme conditions? Also, anyone have experience using Silica gel and have a technique for recharging the stuff in the...

Glaciers in Alaska Thanks for the heads-up on the rope length, maybe I'll have to pack something longer as a precaution. We are heading to Wrangell St. Elias NP in Alaska. Most of our backpacking will be in the McCarthy area, near the 'root' glacier. There are several areas where glacial and...

If anyone has any experience crossing glaciers on foot, I'd love some general comments or suggestions. I'm planning on using a dryline 8mm rope that's halfway between a full, dynamic, climbing rope and a static rapelling line. I was only planning on bringing 50 feet to minimize pack weight. And...

ND Grads I've used the cokin "p" system for a little while, shooting film and digital. The dynamic range of many high contrast scenes is well outside of the limits of slide film and digital sensors. Graduated filters an effective. However, there are definate things to be aware of. The cokin...