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Badger Creek Chuckwagon WeekendFriday, July 27th – Sunday, July 29th, 2012 Bigger and Better for 2012! Come and enjoy a wonderful weekend in the Badger Creek Wilderness. See spectacular views from the eastern foothills of Mount Hood, on hikes that include natural rock gardens, wildflowers, cliff-edged viewpoints, enchanting creeks, old growth, green-pooled cascades, and oak-fringed cliffs. Cost Breakdown
Nominating Committee call for EC CandidatesDo you know someone who would be a good choice for Executive Council? The Nominating committee has met and is actively working on identifying a list of qualified candidates for executive council. Are you or do you know someone who’s skills and life experience would make a contribution to the Mazamas Executive Council? Please send a short description of this person to Nominating Committee member .(JavaScript must be enabled to view this email address). Please consider this your invitation to serve. The pre-threaded topropeYou’re climbing outdoors with novice friends, and you want to rig a toprope from a fixed-chain anchor. You’re the only one in the group who can safely install and clean a toprope setup, but you loath having to climb each route twice—once to hang the rope, and once to clean the anchor and rap from the chains. It’s tempting to thread the rope through the chains and lower off, letting everyone toprope through the fixed hardware. Don’t—it’s a sin and you know it. Repeated lowering will wear out the chain or rings faster than any other abuse. Instead, go ahead and thread the anchor chains, but then clip quickdraws to the bolts or higher chain links and run the rope up through your draws, so the rope weights your own biners, not the chain links (Fig. A). Be sure to oppose the gates of the carabiners or use lockers. When the last person to climb removes the quickdraws, he or she will already be attached to the anchor through the chains, with no need to untie and re-thread. This way, you’re lowering just one person off the anchor, not an entire gang. If the chains are shorter than your quickdraws, you can often get away with just clipping biners through higher links and running the rope through these (Fig. B); lockers are best. Watch your angles, and don’t use this method if the chains are pulled at more than a 90-degree angle, or if the rope feeds awkwardly in any way. If the anchors simply have rap rings on the bolts, you’ll have to climb and clean the old-fashioned way.
Does my compass have adjustable declination?If your compass is, ahem, not used very often, you may not be very familiar with its attributes. A key feature on modern compasses is the ability to adjust for magnetic declination. After this is set, all bearings are read to true north. Without making some adjustment for declination, bearings are read to magnetic north. Converting them to true north requires some backcountry arithmetic, and while fairly easy in principle, invites error when done rarely and/or under the stress of being lost. So, you may be wondering, I bought my compass years ago. Does it even have adjustable declination? Here’s how to tell: Look for a tiny brass or copper colored screw, usually on the back of your compass. Turn this (knife tip works) to adjust declination. Once it’s set to the local value (in NW Oregon, about 17 degrees east) you should never have to touch it again as long as you hike in this area. If you are looking to buy a compass with adjustable declination, the Mazamas map geeks highly recommend the Suunto M3. Read more about this compass here
A better friction knot - the French PrusikThe traditional friction knot, a 2 or 3 loop prusik, has a few drawbacks.
Consider an alternative: the French prusik. Close related to the Klemheist knot, the French prusik is:
The French prusik may be familiar to you as the “autoblock” knot, commonly used to back up a rappel.
Google map of all Mazamas climbsExplore the Google maps below to see all of the peaks that Mazamas climb in Oregon and Washington! This map covers every peak the Mazamas have climbed over the past 8 to 10 years. Tips:
Some cautions on using your smart phone as a backcountry GPSAs many newer smart phones have both excellent screen resolution and GPS capability, a reasonable question is, can my smart phone replace a standalone GPS receiver? The short answer, (at least as of 2012), is probably not. Here are a few reasons why. Rugged design Battery life Receiver sensitivity Lack of a good positional fix This information is from the excellent book, Outdoor Navigation with GPS, by Stephen W. Hinch Best compasses for wilderness navigationThe backcountry navigator has many options when it comes to buying a compass. The bad news: many of these are inappropriate for wilderness use. The good news: a handful of them are terrific, and one in particular has dropped dramatically in price. Direct from the Mazamas lead navigation instructor, here’s the scoop on what to buy and what to avoid. The most important feature of a good compass is adjustable declination! Tip: If a product description says “fixed declination scale”, avoid it. Desirable features of a good land navigation compass include:
Higher end compasses may have the following (optional) whistles and bells:
As you might imagine, compasses not suitable for backcountry use have few or none of these features. Compasses are unsuitable for mountaineering if they:
Here are three compasses that the Mazamas navi-geeks recommend for wilderness navigation. Students in any Mazamas class with a navigation component are highly encouraged to buy one of these three. All are sold at REI. They are listed in general order of price and features. 1) El Cheapo but it works: Suunto M-2D
2) Just Right: Suunto M3
3) High End with special sauce: Brunton 15TDCL
Here are some photos and brief descriptions of compasses that are not suitable for Mazamas classes. If you have one of these, consider getting one of the ones recommended above. You’ll be happy that you did. Lensatic compass – accurate bearings, but no baseplate
Baseplate compass, but without adjustable declination
Baseplate compass with mirror, but without clear baseplate Some material on this page is from The Mountaineers
Ascending a rope with a Gri-GriWhether you are big wall climbing, caving, or setting up a big tree swing in your backyard, sometimes you need to get serious about ascending a fixed rope. The proper tool to do this is not the humble prusik knot, but an ascender (aka jumar). The traditional set up typically used by big wall climbers is two ascenders clipped to the rope, two daisy chains connecting the ascenders to you, and two aiders hanging from the ascenders for your feet. While this is certainly a time tested and efficient technique once you get the hang of it, many people find this set up to be quite awkward and inefficient when first learning. Plus, you need a lot of expensive gear! Gear you need:
Advantages to this system:
Note: The pulley in the image below is nice to have, but optional. This is a better show than a tell, so check out the good diagrams of this set up and a more in-depth discussion at this website.
and here’s a nice YouTube video showing the technique in action:
Map geeks only - latitude - longitude coordinates explainedLatitude and longitude coordinates are a bit of an enigma. Everyone has heard of them, but few people know the basics of how they work, let alone how to effectively use them for navigation. Here is a nice tutorial that lays it all out for you.
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