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  • Greywolf1: Well fun time, waiting for MTO to wake up, site has been down since Friday afternoon
    October 30, 2017, 08:20:53 AM
  • Greywolf1: No sure, was waiting to see what they had to say
    October 25, 2017, 06:02:00 PM
  • juu907: WELL! i am confused. i guess smr od'd on some noseeum pills
    October 24, 2017, 05:24:28 PM
  • Greywolf1: So we have a new member, Snowshoe Mountain Resources, or smresources for short, be interesting to see how things are going on Yanks and Kangaroo
    October 22, 2017, 10:55:30 AM
  • juu907: well there it goes. life as i have known it. 1st. snowflakes of the season at 6:46 this evening.
    October 21, 2017, 08:22:26 PM
  • ryanonthevedder: Janitor at work sold 8g of 14k gold to a jewler for $70 yesterday and asked if it was a fair deal.... told him I would have paid $100. lol that as close to mining as I ve come for months. Soon though
    October 11, 2017, 09:45:27 PM
  • Greywolf1: Just a day of cleaning shop, putting stuff back in place, TRYING to get it organized, got about 150 lbs of scrap aluminum, bunch of pieces of junk steel, etc etc
    October 09, 2017, 04:12:44 PM
  • Greywolf1: We nothing to much, just MTO is going sideways and it;s friday afternoon
    September 29, 2017, 03:13:05 PM
  • Greywolf1: That time again, do up the annual reports, see what Mines has changed to make it interesting for a body
    September 29, 2017, 03:10:15 PM
  • Greywolf1: Well whats new in the fields for ya all ?
    September 28, 2017, 07:59:51 AM
  • Greywolf1: Have a old friend that wants to go on last hunting trip, so heading out on friday with him for 4 days or so, make it happen for him, make sure he gets something, and gets back to town again
    September 14, 2017, 06:19:14 AM
  • Wheels: Drove from Alta. border to Richmond today and I have to say that the smoke just before smelled the best...A little cedar plank to it versus the acrid pine burning through the East Kootenay's
    September 05, 2017, 07:38:08 PM
  • D - Bar: Great picture of "Chasing The Dream" Koodo's to them and hoping they get lots of color.....
    September 05, 2017, 01:49:23 PM
  • Greywolf1: May get out to claim in next couple of weeks, fire threat is coming down, maybe do some prospecting and mining yet this year
    September 04, 2017, 06:36:43 PM
  • Greywolf1: Well +34 C in the shade, +38 C or better in the sun, no rain in sight, don't even Fart out there
    August 29, 2017, 04:24:40 PM
  • Greywolf1: Was a nice day, then bombers started flying again, smoke slipping back in
    August 27, 2017, 01:31:06 PM
  • ryanonthevedder: Keep you eyes out for snakes fellas. Happened upon a 4 foot rattler this weekend!
    August 20, 2017, 08:49:54 AM
  • Hi Lo Silver: Man you folks could sure use some torrential rains with no lightening for a few days. Stay safe.
    August 12, 2017, 08:31:07 PM
  • Greywolf1: Will do Jerry, on another price of gold is going up
    August 10, 2017, 01:56:33 PM
  • juu907: pretty good rain here for a few days hope it comes your way. STAY WET & AND SMOKE FREE.
    August 10, 2017, 10:35:22 AM
  • Greywolf1: Hazy days, still under evac alert, turning my hair gray
    August 03, 2017, 06:21:49 PM
  • Greywolf1: Day 14, will be relocating to Quesnel tomorrow morning, staying with Richard and Jackie, mining friends of mine, should be a few more days before going home, unless fires blow up some more
    July 26, 2017, 04:12:25 PM
  • D - Bar: Seen on tv news where some feel they are not wanted as time goes bye. Chance road to W.L. will be open 3 -5 days. Goold Luck.
    July 26, 2017, 06:53:02 AM
  • Greywolf1: Still stuck here in Prince George BC, nothing new, other than luck of the draw, getting nuthing from Red Cross as other people have, getting a bit pissed off with things
    July 25, 2017, 09:58:49 PM
  • juu907: mornin Eric: are you getting any word out of Willies Puddle at all? hard go for sure. hang in there and good luck.
    July 25, 2017, 08:52:02 AM
  • Greywolf1: Well this fire thing is wearing thin, peoples nevrves are on end, hope it ends soon
    July 24, 2017, 07:06:53 AM
  • Greywolf1: Hell of a summer funtime so far
    July 18, 2017, 06:06:40 PM
  • Greywolf1: Very warm one today, helped a friend out downtown for some hours, chillin in the basement now
    July 06, 2017, 03:38:30 PM
  • Greywolf1: Happy 4 of July to our American Friends
    July 04, 2017, 07:25:50 AM
  • Greywolf1: Thanks Sapper, finallyy back in
    June 18, 2017, 08:49:19 AM
  • Hi Lo Silver: Can you say hi to him from me.
    June 16, 2017, 06:35:39 PM
  • RogueSaintsMining: Hey Gang ... Greywolf is having some Computer issues and is not able to log in ... if you need to get ahold of him leave a message here and I will pass it on
    June 16, 2017, 10:23:16 AM
  • Cade: That fraser watershed article... pretty anti mining... am I missing something?
    June 03, 2017, 05:43:14 PM
  • Greywolf1: $1724.00 awesome times
    June 02, 2017, 03:49:26 PM
  • Greywolf1: Nope, Just been tinkering with things
    June 01, 2017, 02:48:45 AM
  • juu907: sure hope we didnt lose you eric
    May 31, 2017, 08:51:45 AM
  • Greywolf1: All the best to our American Friends on this Memorial Day
    May 29, 2017, 06:23:26 AM
  • Greywolf1: Gold $1712.00 and going higher
    May 17, 2017, 04:55:11 PM
  • Greywolf1: No a up note we still have Christy Clark as Preimer of BC after the election, so its all good for Gold Miners
    May 10, 2017, 06:59:29 AM
  • Greywolf1: $1734.50 even better
    April 28, 2017, 07:46:12 AM
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Author Topic: Map Scale & Google Earth  (Read 719 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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