I am not familiar with the Montana but I believe it comes with a preloaded map set probably at least for North America although it could be more extensive. It seems there are other map sets for special purposes or parts of the world. You should consult the Garmin product description... https://www.garmin.com/en-US/p/699779 Most definitely people use Garmin handhelds for sailing. The Montana claims a IPX7 water proof rating so it should be suitable for that purpose. You do have to charge its built in battery so that is a consideration for longer trips.
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The subscription is for the Satellite messaging service. There is an annual fee and month to month charge or you can pay annually. You can move between plans. Unless you are a verbose message type or frequently need extensive detailed tracking the best plan is the basic monthly Consumer Safety plan https://www.garmin.com/en-US/p/837461 which you can suspend for the months you don't need the device and reactivate at any time...you need access to your account on the Garmin website. Messages sent or received, tracking points and weather reports are all billable items and the various plans prepay them in select ways.
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As far as temperature in June it can be cold and the since it is looking to be a high snow year, possibly the creeks and crossings will be challenging and possibly impassible at their usual crossing places. There may still be snow around in some areas. It is possible it could get down to around freezing at night although it should generally be warm or even quite hot (70F) in the day. There is the possibility of storms in June but they are more common later in the summer. Mosquitoes are likely to be a problem. FYI - Here is an example 6 day itinerary from Toulumne to White Wolf. https://content.sierraclub.org/outings/backpacking-grand-canyon-tuolumne-yosemite-national-park-california
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@AllisonL30 - As far as I know there is only one trail out of the Grand Canyon of the Toulumne's to the White Wolf campground but perhaps there are two trail heads. There is a backpacker camp there. White Wolf is otherwise a first come first served general camp site for car camping and a High Sierra (tent cabins) camp. The rules have changed due to Covid and the campsite openings for 2022 are not published yet as far as I can tell.
From this page...
I see various "trailheads" from White Wolf. This means you have to take the route from the trail head thorough that destination if your trip starts at that trail head.
Most likely the trip itinerary just lists this because it does rather than it actually making sense...I found this planning a JMT hike a few years ago.
From the list you probably just want
White Wolf campground
since it is not your starting trail head and that is where you will be ending.
If you were starting at White Wolf then you would probably want to pick
White Wolf to Pate Valley
and probably you have to camp at or passed Pate Valley on your first night on the trail. Here is a trip description of some that did that a number of years ago. They took 4 days
You almost certainly don't want "White Wolf to Aspen" or White Wolf to Smith Meadow" since they go in the opposite direction.
If you exit at White Wolf you can probably camp at the backpackers campground for one night. If you want to start there you may need to score a first come first served campsite for the night before you start. I suspect choosing "White Wolf campground" as your starting "trailhead" is a request to camp there and is subject to the 6 daily reservations. Something to ask.
Generally with these permits it is the entry trail head that is the important one since that is what they assign the quotas to. The intermediate locations and planned exit are more a guide to what to you plan so long as you don't stay more nights than your permit. It should be perfectly fine to take anything up to 14 nights in the summer...I think...so long as you request a permit with that many nights and provide a rough plan of where you will be traveling. Here are the rules...
I would not rely on hitchhiking although it may be possible. I think it is legal in Yosemite although I have heard it is not in some National Parks. However there is a YARTS bus which you can plan on...
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Columbia sell the pants I use on 32*36 https://www.columbia.com/p/mens-silver-ridge-cargo-pants-AM8007.html?dwvar_AM8007_color=221 Searching REI for that size shows these... https://www.rei.com/c/mens-hiking-pants?ir=category%3Amens-hiking-pants&r=c%3Bsize%3A32+Waist%3Binseam-in%3A36
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The purpose of a footprint is to... Protect the bathtub floor of your "expensive" tent from abrading and getting holes particularly in rocky or sandy terrain. Having two membranes that can slide across each other is almost certainly a better system to avoid abrasion and holes caused by the ground than a single cloth, Keep your tent cleaner in muddier areas allowing some isolation of dirt when you set up and tear down. For some double walled freestanding and semi- freestanding tents a footprint provides extra functions where you can set the tent up with just the fly and either use it like that or put up and take down the body keeping it dryer in wet weather. I think al of these qualify as "good ideas." The cons are: 1. Factory footprints are often optional extras and can seem quite expensive. But...you can make your own both cheaply and effectively from Tyvek or Polycro/window film. 2. A footprint adds a few oz of weight over having a more robust floor material built in. 3. An extra component adds complexity to tent packing, setup and tear down. There is an increased chance or forgetting or losing something etc. People can have different views on how much these matter to them. Some tent designs are really intended to use with a footprint in anything but ideal campsites because they use a thin floor material. Often they are sold as option extras but it is still recommended that you use something. I have always used a footprint and have purchased the factory foot print for every tent that had one available..mostly REI and Big Agnes. These are typically made of the same or similar cloth to the tent floor though some some use a thicker fabric. The edges are finished and there are stake loops or straps generally corresponding the to the tenet pole feet to which they typically attach in some way. There is generally a top side and a ground side. On a very large family tent I used a suitably sized "blue" tarp. On a 6 Moons Lunar Solo trekking pole tent I made one from Tyvek. I find them useful for general campsite and wilderness backpacking. I would consider not using one for a long distance hike where carried weight and simplicity become more important factors but it would depend on the tent I chose to use. If you choose to make a footprint for your tent it should be the shape your tent covers but 3-6inches smaller all around. It should not stick out of from under the tent where it will catch rain runoff. If it does it will tend to pool water under the floor of your tent which is a good way to find any holes you do have in it.
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Given that some people post daily vlogs and others post regular edited videos of their hikes to YouTube along with Instagram and other content and apparently walk the entire trail it is clearly possible to work online to some extent while thru hiking. Some of those people have help with video production and channel management but others claim to do it entirely solo. Whether you can pull it off is going to depend on your focus, energy and determination, how you set your priorities and a certain amount of luck because it is unlikely to be easy. It really depends how you work and can get things done. Personally, I would try and get you project done before starting the hike. Trying to do it piecemeal along the trail with all the distractions and travails increase the risk you will succeed at neither. If that is not possible, I suggest planning to take break from hiking, say 5 days or so...whatever you think you will need, a short way in to finish the task and plan a second similar break in case you need more intensive review/rework before your deadline a short time later. That way you can plan where you do the work, what facilities will be available and probably you won't need to carry a computer. Laptops are vulnerable to breakage backpacking and the extra weight will be unwelcome. A tablet is more practical to carry but less capable and even that may seem heavy and burdensome to keep charged. Make sure you keep all your work online obviously. Depending why you want to hike the trail I would make a back up plan of which parts of the trail you really want to hike in case you need to cut short your hiking time. To some it is very important to walk the entire trail in a contiguous hike to create an "achievement". Others could care less and walk what they want to. There are points in between. Hiking 2000 miles between two arbitrary places of no other importance is a self indulgent recreational pursuit so it is really up to you to decide what you want out of it and it is almost certain.
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Pictures help. Possibly a extra fine metric thread which will may harder to find on that size machine screw... Assuming it is metric (which seems very likely) the first step is to measure the screw diameter to see if it is M3 or M4 or whatever. M3 is typically available with 0.35 fine pitch and M4 with 0.5 fine pitch. It might be one of those. The common thread pitches are M3 0.5 and and M4 0.7 respectively. Possibly it is something less usual. M3 with 0.20 pitch or M4 with 0.35 pitch maybe. You won't find a screw with that head but you might be able to fake it using a longer screw and a washer or spacer. If it screws into an aluminum billet then it may work to re thread that to a more commonly available pitch. I can't tell how it works from just the screw so I'm guessing. Another option is to see if someone has a single pole of the same model.
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I suspect the thread on the screws are not unique and you can improvise a fix. The thread is likely metric. I would take the pole to a good hardware store and go to their fastener section and see if you can identify the thread size and then look of screw styles that might work. Most likely some kind of socket head cap machine screw. https://fastenerengineering.com/what-is-a-socket-cap-screw/
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@bearbait Osprey suggest a pack weight between 30-50lb for that pack so a 25lb total pack weight shouldn't cause an issue. There is not really a "break in" time for modern backpacks and they should not get severely more uncomfortable in the process. The backpack size "Small" has mostly to do the with the torso size (usually 16-18 inches) and possibly the actual capacity of the pack. While the length of the padding that wraps around your hips typically increases with the pack's "sizing" it does not really indicate how the pack might fit your hips since that is very dependent on the design of the belt. Looking at the reviews for that pack and for the smaller 50L version there are others that have complained of hip bruising. I have certainly seen reviews in the past for Osprey packs...particularly women...where the hip belts just didn't work for them. Osprey packs are supposed to be the cat's pajamas for comfort but that doesn't mean they work for everyone. I have had some REI staff criticize them and steered me away from them in the past. I think some people just don't get along with the full mesh suspension. I have never used one myself. If you can, I strongly recommend taking the pack back to REI, explain the problem, see what they suggest and try some different packs again...maybe your second choice from before would be a good place to start. It is not unique to you that the first fitting doesn't work and gets the wrong size (generally if you are between sizes) or picks the wrong design...maybe because other factors swayed the decision or because sometimes you can't know without actually trying. The REI Traverse 60, the Gregory Deva 60 or 70, Deuter Air contact lite 60 and the Osprey Ariel 65 are packs of similar capacity, weight and complexity if that is what you need. None of these use full mesh suspension...even the Traverse which stopped using it with last year's redesign. They are all fairly heavy packs designed to carry more total weight than 25lb. If you are only planning to go in 2 or 3 night trips with a 25lb load you might do with a ~50L pack like the REI Flash 55 (there are others) which is lighter and more configurable. It is probably less robust that those packs but if the fit is right, it will save you about 1.5lb in weight off the basic pack. Depends a bit on how bulky your gear is and what other travel you plan to do with the backpack. Unlike Osprey, REI does not have a lifetime warranty...only 1 year...which is important to some.
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Not a medic but my understanding is that bruises are cause by impact or pressure points. Possibly reasons I can think of ...Could be a combination... 1. Carrying too much weight for the design of the backpack. What backpack and how much did it weigh (including supplies and the average amount of water you carried) when you started your hike? 2. Not loading the weight properly. Generally putting heavier stuff further away from your back has a leverage effect and increases the pressure on your back and shoulders. The pack may be prone to bounce more also. You may try to compensate by tightening the belt and shoulder straps too much creating pressure points. 3. Backpack adjustments...Possibly the the shoulder straps and hip belt were not adjusted properly once you had a full load. Also backpacks that are designed to carry heavier loads have a few subtle adjustments that can affect how the pack rides. Straps where the hip belt attaches to the pack which can affect how the pack swings side to side. If the pack has them they should be tight and hip belt is fasten. They can make subtle changes to the hip belt fits. The so called "load lifters" that pull the pack higher on the shoulder straps and closer to your back. These secondary adjustment don't work properly unless the hip belt and shoulder straps are first sized and adjusted and worn correctly. 4. You body is not yet adapted to carrying that kind of load in a backpack for that long. If you are not used to carry a load like this it is quite likely that it will beat you up by the second day. Loading the backpack to the weight I intend to carry and going for a 5 mile hike is what I have done before trips just to see. If I haven't been keeping in shape this can result in a bit of back compression and aching...never had bruising but I'm pretty happy with the way my pack fits. 5. It is the wrong backpack for you due to subtle fit problems that only show up after wearing it loaded for a while. The hip belt shape or shoulder straps might not really work for you. You could be between torso sizes...not uncommon.... some packs have a full range adjustment...some are sized but may have small adjustment . Generally when they fit packs they only used a fraction of the weight and volume you will likely carry. Fully loading the pack will change how the pack fits and rides. When you first get fitted for a pack generally you have no idea if it feels right or not in the limited time it takes and it can take a could of fittings or swapping out the pack for a different size of design to get it right. 6. You bruise easily. Unlikely but...
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