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  • Greywolf1: Will gold spike today, waiting to see
    March 23, 2018, 12:16:54 PM
  • Greywolf1: Nope, on top of it, he wasn't even arrested, special treatment for the dickwad
    March 23, 2018, 07:12:28 AM
  • juu907: ill bet good money david and his buds didint walk to that gate to protest. likley burnt several gallons of gas or diesel.  BETS????
    March 22, 2018, 10:07:32 PM
  • Greywolf1: Banned in less that 24 hours, check out post that did it [link]
    March 22, 2018, 06:39:57 PM
  • juu907: we normally feed 100 grosbeaks untill april 15-17th this year it was march 17th and they are all gone. still 2' of snow. sure makes you wonder
    March 22, 2018, 11:27:27 AM
  • Greywolf1: Well starting to see some grass showing on lawn, and the driveway is clear and muddy, spring is getting closer
    March 22, 2018, 08:10:30 AM
  • juu907: seems pretty nerdy to us ole country boys kinda like that emc=2 thingy
    March 15, 2018, 04:09:46 PM
  • Hi Lo Silver: Pii's not nerd if you're referring to today being pii day.
    March 14, 2018, 03:26:44 PM
  • Greywolf1: Yer Welcome, someones got to do it
    March 14, 2018, 02:16:00 PM
  • juu907: HAPPY NERD DAY
    March 14, 2018, 09:57:02 AM
  • Greywolf1: Finally got it back sort of, still needs some doing [link]
    March 09, 2018, 12:10:00 PM
  • Greywolf1: Nice surprise to wake up to this morning, $1715.00 or so
    March 05, 2018, 07:27:12 AM
  • Greywolf1: Yahoo, broke through to $1705. and change, looks good
    March 02, 2018, 06:05:37 AM
  • Greywolf1: Here's to seeing Rogue in the spring, maybe he will have a pin pointer detector to check out Rudies claim
    February 28, 2018, 01:47:05 PM
  • Greywolf1: Well price og gold is sure getting the numbers up on forum, now if I wasn't snowbound, could sure stand getting out for  a bit
    February 27, 2018, 07:32:09 AM
  • graeme1955: Ive wondered why you have not been on fb I agree with you too many cryin types on there!
    February 20, 2018, 03:48:48 PM
  • Greywolf1: Side note, got Kennys SOW done up, dates changed, and file sent in, decent afternoon
    February 20, 2018, 03:25:33 PM
  • Greywolf1: Cause it's where we are sort of organizing to battle Princess Trudeau and the Muslim goat humpers
    February 20, 2018, 03:24:20 PM
  • juu907: WHY ANYONE would mess around with any social media site is beyond me. talk about looking for trouble that is it.  jerry
    February 20, 2018, 11:38:04 AM
  • garth64: Makes ya wonder who is backing who
    February 19, 2018, 08:28:28 PM
  • Greywolf1: Well that didn't last long, kicked off FB again, for saying a ISIS fighter/terrorist should be shot
    February 19, 2018, 07:00:47 PM
  • Greywolf1: Well would like to report some good news, but it appears the Krauts have the lead in medals
    February 18, 2018, 06:10:11 AM
  • Greywolf1: Well gold did hit $1700 the other day, if only for a moment, but it's hopeful, course its snowing like a raging bitch here today, (THE SUN WILL COME OUT TOMORROW)
    February 17, 2018, 09:22:32 AM
  • Greywolf1: Well what to do today, price of gold is up, weather kinda sucks, -20 here again, I guess do up another SOW
    February 13, 2018, 06:42:23 AM
  • Greywolf1: Lets see, on Agenda today, weld some things up, play with Tig
    January 30, 2018, 05:49:58 AM
  • juu907: what the heck is all that yellow stuff i have been panning out. it sure is heavy. i have been tossing it . too heavy to pack out. i like the blonde stuff better
    January 27, 2018, 12:35:15 PM
  • juu907: no wake up for me but woke up my wife. just a roller 175 m south of kodiak 6.5 miles deep. no reported damages.
    January 23, 2018, 12:41:10 PM
  • Greywolf1: Hear ya had a early morning wake up call there Jerry, all good up dere now ?
    January 23, 2018, 08:31:42 AM
  • Greywolf1: It's all good
    January 21, 2018, 09:54:33 PM
  • garth64: nope its my computer
    January 21, 2018, 07:57:58 AM
  • garth64: somethings out of wac here erik
    January 21, 2018, 07:41:21 AM
  • Greywolf1: Yeah passwords, I now have written down some where
    January 17, 2018, 10:58:10 AM
  • Mark: Happy New Year Everybody. Not to bad with memory yet. I remembered my password.
    January 15, 2018, 06:38:39 PM
  • Greywolf1: Alls good again guys
    January 15, 2018, 04:49:33 PM
  • jdrescher99: happy new year
    January 06, 2018, 05:59:56 AM
  • Greywolf1: Need to get a new mouse, damn thing crapped out, really limits ya to working on computer
    January 05, 2018, 12:42:36 PM
  • juu907: yep HI-LO sure have. if i remember right that is one of greywolfs favorite songs. thought i would see if i could stir him up a bit.
    January 04, 2018, 04:48:07 PM
  • Hi Lo Silver: You been watchign paint your wago or something there Jerry?
    January 04, 2018, 04:08:28 PM
    January 04, 2018, 01:41:53 PM
  • juu907: good luck on your updates and happy new year to everyone
    January 01, 2018, 08:51:28 AM
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Author Topic: Map Scale & Google Earth  (Read 1002 times)

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Map Scale & Google Earth
« on: March 13, 2017, 02:09:16 PM »

Google Earth and scale
When asked to supply a map for exploration or mine site purposes the applicant is required to supply a map to a set scale. For example a BC NOW requires a 1:5000 for the site map.

You have Google Earth but the scale on the map is a scale bar so how do you find a 1:5000 or any other scale.

Map scales come in three major types.
STATEMENT OF EQUIVALENCY and also called a verbal scale
In this case a unit on the map is equal to a different unit on the map. One map inch is equal to one ground mile.

REPRESENTATIVE FRACTION and also a ratio scale
In this case both side of the ratio use the same unit. One unit on the map is = to X units on the map.

GRAPHIC and also called a Bar Scale
In this case a line on the map is equal to a given distance on the ground. (Google Earth)

Example in US, inch - foot - mile 1:63,360

REPRESENTATIVE FRACTION, one inch on the map is equal to 63,360 inches on the ground.

STATEMENT OF EQUIVALENCY, one inch on the map is equal to a mile. (63,360/12=5,280)

Example Metric
REPRESENTATIVE FRACTION, one cm on the map is equal to 5,000 cm on the ground.
STATEMENT OF EQUIVALENCY, one cm on the map is equal to 50 meters on the ground. (5,000/100=50)

How to translate the Google Bar to a ratio or REPRESENTATIVE FRACTION scale for your NOW

The Google bar is turned on or off in the View menu and as one zooms in from a global view it shows up at about 2500 km. The size of the monitor determines the length of the bar scale.

Move the Google page in and out by grapping the edge and you will see the bar change length.  Using a ruler with cm and change the size until the bar is at a set distance. On my screen (24") 8 cm is a good fit. Yours may be different.

At present the bar at 8cm long says 2048m
What scale is that? It is a the verbal statement of equivalency 8cm on map = 2048m on ground. To change that to ratio we need to use the same units.
2048m = (x 100) or 204800 cm 204800/8=25600 or 1cm = 25600cm or a scale of 1:25600
2048/8=256 or 1cm = 256m so time a 100 = 25600

But for our site plan we want 1:5000.
That means 1cm on the scale = 5000cm on the ground
5000cm = (/ 100) 50m so the 8cm line = 8x50=400
Zoom in until the bar scale is 400m and the map is at 1:5000
Without mines the greens would have no iPhones to complain about mining


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Re: Map Scale & Google Earth
« Reply #1 on: March 14, 2017, 06:55:59 AM »

Good info. Thanks for that. 8)
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