48-21-47 N
89-13-45 W
DMS
In Canada. There is a CBN Pillar and azimuth marks on the other side of the city, but around 10km away.
I'm thinking I may get a demo of Carlson's baseline processor - do that, and maybe do a polar for a check and for the fun of it.
@cf-67 I did a search of NGS data base for Lat of 48 to 49 and Long. 89 to 90
6 points came up. If I had a topo map I could see where I really need to search. That will be up to you.
pid SZ0062 designation is 008740082; SZ0060 BLAKE; SZ0057 MACGREGOR ;SZ0061 MCKAY; SZ0064 WARE
and SZ0063 WHITEFISH
This is where a Triangulation Diagram or the Geodetic control Diagram (which was a more detailed map) of the area
would be handy. I understand you can plot NGS points on a topo map on the computer but I have never done that.
JOHN NOLTON
Thanks for looking into this - I can definitely plot those coords into google earth and see where they are.
Some of those are dated 1964!
For me. they all come up in an NGS search as "Outside NGS publication area" with no data. How did you see them?
As of about 2000 when Geocaching took their snapshot of the NGS data base, SZ0063 was assigned to a point in Minnesota.?ÿ The others don't come up in Geocaching, so weren't active at that time.
John's search area is roughly 60 miles by 40 miles, pretty big by surveying standards.
The given point is on Mission Island. NGS lists three points somewhat less than 30 miles south. They are SZ0022, SZ0023, and SZ0024.
I only looked at the NGS map, not the data sheets, so I don't know what's really there, but they're kinda far away.
Dang! These 3 all have photos with the data sheets. Take a look at this one, SZ0022:
Not much help with the current problem, but pretty cool. Online geography lesson. 😎
@mathteacher+
Everybody knows that the US/Canada Border runs east-west. You have shown it going north-south.
Hmmmmm..... unless we are talking about the Alaska/Yukon Territory border.
????
cf.67 I had some more time and found 5 stations for you to look up. Station MCKAY is on a noll 200+ metre higher in elevation
than the boat so you might be able to see it IF nothing is on line. Just a little hike; looks like fun.
MCKAY?ÿ ?ÿ12316?ÿ ?ÿN48 20 40.7 , W89 17 10.8 (in dms for plotting). Its like 4700 metre from boat.
Look at?ÿ 353341?ÿ Watermains -89.23075?ÿ 48.36650?ÿ in Deg.decimal deg
35344?ÿ IRWIN?ÿ ?ÿ-89.23501?ÿ ?ÿ48.35811
35339?ÿ ?ÿDunphy?ÿ -89.20900?ÿ 48.38142
35356?ÿ ?ÿNorthwestern?ÿ -89.30373?ÿ 48.35603
Let me know what you think. As you can tell all points are GSC points.
?ÿ
JOHN NOLTON
Yeah, I probably don't want to check into that point after telling the boat which way is north 😮
@mathteacher small area by Geodetic standards (do I get a laugh out of that?).
I do think my model 8 geodimeter (after I get a new Laser in it) will reach out to 60 miles
JOHN NOLTON
Wowsers - Irwin and Dunphy are right there!
McKay would be an awesome backsight - but that is quite the hike - that's a steep hill!
Thanks for the sleuthing - I will definitely check these out.
GNSS Solutions shouldn’t be broken. I use it with win10 Just fine.
gnss solutions baseline is best/easy idea. Lots people here use it with win10
Yeah, I was confused, too, because I had always heard 54 40 or fight and this is way too far south. The mark is on a bridge; maybe this screenshot from the NGS site will help:
I had great success with it in the past. But I remember having to convert rinex into ashtech format (I was using Leica gear) - which didn't bother me at all because it worked. (I think it was maybe Ashtech Solutions I was using.)
Now, with GNSS Solutions it accepts rinex directly and the old 2 way converter is gone - but it always says "raw file is invalid" when ever I try.
If you can get me past that roadblock I would be good to go!
