Navigation Basics Part 3 | Map & Compass Triangulation

Needed a refresher, Great job again on articulating the process in a simple to understand manner 🎉 love to see couples interested in the same hobby🎉 my wife will hike and test our skills together, but to have her watch a Soccer game with me ... 😂(thanks for not saying "put fred in the shed")

Thank You for your channel, and Thank You and your husband for sharing this presentation with us. I'm an old guy that has used map & compass for a long time, trying to learn the finer points of GPS use but will always carry a map and compass. I'd like to add three things that helped me a lot during my mountaineering days many years ago, as well as finding blue lines and lakes that are off the beaten path to fly fish today. 1. When you know your exact location (i.e. after triangulating on known landmarks), to follow a route on a bearing in degrees from point A to point B while travelling with another person or a group, the *person with the compass follows the others in the party*, calling out changes in direction (right, left, steady as you go) to keep the group travelling along the route. The members of the group become an extension of the compass direction of travel arrow. When having to deviate the route direction due to obstacles, keep track of the amount of deviation and the approximate distance (number of steps), but return to the original bearing in degrees ASAP. After passing the obstacle go back the same number of steps, return to the original bearing, and you will resume the original route from point A to point B. This worked well for me whether on a glacier in a whiteout, or in old growth forest, being accurate measurable in "feet" when travelling up to a mile. 2. Use of a barometric altimeter. I think they are so important that I always carry one; either a stand-alone or built into my watch. They work by reading the atmospheric pressure, and after initial calibration (*at home before you leave*, and *again at the trailhead*) showing that as the elevation. An altimeter provides an additional data point in addition to triangulation, just like a third bearing. Additionally if you know you are on a specific trail that is climbing or descending, an altimeter can pinpoint your location without taking bearings. Find where that elevation contour line on the map intersects the trail; very useful in a forest with no views. However as we all know, air pressure will change depending on the weather so every hour or so when you get to a known landmark you can identify on a map (a stream, a lake or marsh, a significant turn in trail direction, beginning of a set of switchbacks), you should recheck the altimeter with the contour line for the landmark you are at on a topo map and recalibrate if necessary to ensure accuracy. 2.1 Also, since air pressure changes can signify weather changes as well as altitude changes, a trend of a barometric altimeter showing at a lower elevation than you are probably means high pressure is moving in - improving weather. A trend showing higher elevation than you are probably means a low pressure system moving in - worsening weather.

Excellent presentation.  Your husband obviously knows what he's talking about based on how easy he was to understand.  Thank you, both of you, for this video.

Great information and presentation.

this has been one of the best and most detailed tutorial here. But if you can talk about more how to adjust for the declination, it will be 2 thumbs up!! thanks.

Wow, I've seen so many of these videos and this is the first one that has really hit home. Clear, concise, and didn't waste time on unnecessary info. I learned all I needed to know and had all my q's answered. Thanks.

that is exactly how you do it. very good video. hopefully, more like this to come.

This is the video that finally helped me understand triangulation. Many thanks to the hubs! To the nav beginners out there: It does help to understand the declination setting factor and knowing about map topography, reading the map key & the different Norths *1st*...grid, true, magnetic. Otherwise what is being detailed in the video will likely sound like Greek. I have already been through many, many videos trying to get a sense of all this.

Thank you very much James for sharing your way to use map and compass! :) ....looking foward for upcoming stuff. To the both of you all the best from Berlin/Germany!

Excellent video on triangulation. Your presentation was spot on and easy to understand.

Very clear and helpful instruction on triangulation! Thank you for taking the time to put this video together.

The first, lensing compass out we're showing, need a protractor to use it with maps. An $8 item. The second , base compass, the one is used in your video, all ready has protractor built in, that's why popular. Military prefers the lensing compass for ruggedness.

Very good explanation, thank you!

Excellent video! Thank you so much for this comprehensive lesson. Clear and concise. Can't wait to get out a map and practice. (Nice to meet your husband, too.)

Well Done, very informative your husband did a great job, I'm going to try to use his teaching in a known setting to reinforce what I learned

There's a place in Kansas City called Gallup map company and they sell topographical anywhere in the US 25 x 25 miles they're awesome

Thanks for that. I did some orienteering in my teens (over 40 years ago now. Sigh) and I was actually pretty good at it; this was a two week school trip to the Brecon Beacons in Wales, UK and of the six teams of two we were split into, I came in first each time. I really loved it too. However, as it was so long ago, this little refresher was perfect. I'd love to take it up again some time. The main reason I didn't pursue it at the time is that I got into cycling in a big way. I live in London and still use my bike to get around wherever; I actually never took my driving test, the bike was quicker than a car or public transport. I'm not as fast as I used to be, but still not bad (I was actually very fast back then. A motorbike dispatch rider clocked me at 30-35 mph and that was into a headwind. With traffic and lights I still managed to average 25. Nowadays it's more like 15, but then I'm 61 now). Anyway, apologies for the irrelevant details. It's a habit I can't seem to break, this chattiness. Thanks again for the video. Hope you're keeping safe.

Fantastic video its been a long time since I've used my compass skills this is a nice refresher. Very well explained for people of all levels of skill.

Great video Happy Easter to you and your husband James 👍

Very Informative! Great job by your husband! Very well explained!