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Everything posted by kayakbird

  1. foxtrot_xray & all, Many of the Geocache one time snapshot Datasheets monument-ed dates have been changed. Quite a few, I think, because of information in all the Precise Level Net documents that floated to the surface with internet searches. I believe that PLN-18 was one that I used extensively a dozen years ago, but can't pull it up right now. MEL
  2. Datasheet history for EE0017 has been updated; but not EE0061. EE0017 HISTORY - Date Condition Report By EE0017 HISTORY - 1900 MONUMENTED CGS My all time favorite - a recessed square; which took a rod with a special end. History also now updated. Sorry for the repeat reference from several threads ago. EV0852 HISTORY - Date Condition Report By EV0852 HISTORY - 1907 MONUMENTED CGS MEL https://www.geocaching.com/mark/details.aspx?PID=ev0852
  3. Thanks, Bill. Attached is an old thread of mine on these points: https://forums.geocaching.com/GC/index.php?/topic/262734-1930s-state-survey-benchmark-motherlode/
  4. Albany County, Wyo is a hotspot for a sub-set of very interesting marks. The 'and State Survey' series from a special, but very short lived, Depression Era program. Tried, but failed, to find a link to one of Jerry Penry's write up on these. The linked PDF covers everything. kayakbird Bottles, Pots, & Pans?-Marking the surveys of the U.S. Coast ... https://www.ngs.noaa.gov › Survey_Mark_Art
  5. All, Most of my found chiseled marks are in the southwest with a few northeast of Duluth. Remembered that there was one somewhere in ND, and it took awhile to dredge TG0045 out of my transit book for August 2009. Was interesting to see that the 'Unknown by CGS (MONUMENTED)' has been updated to 'TG0045 HISTORY - 1913 MONUMENTED CGS' in the current DATASHEET. MEL Photos in link: https://www.ngs.noaa.gov/cgi-bin/ds_mark.prl?PidBox=TG0045
  6. ItsDiamondWolf, Do a search for 'settings' in this forum. Many, many possibilities - I particularly liked the 'chiseled square' in rocks or concrete. kayakbird
  7. Bill93 @ all, A search for 'Garden Hoe Rake Hand Tools 15 Inch Gardening Cultivator' brings up several $20.00+/- options for one similar to the one I found near EV0852 6Mar2010. The hoe end has been welded back on a couple of times. https://www.geocaching.com/mark/details.aspx?PID=EV0852
  8. Stumbled upon this tidbit of history on the word 'gage'. MEL https://www.usgs.gov/faqs/why-does-usgs-use-spelling-gage-instead-gauge?qt-news_science_products=0#qt-news_science_products
  9. A reference mark could be some distance from the primary location. Wonder if there might be a series of monitoring wells having to do with that railroad yard 600 yards to the northeast. MEL
  10. All (hoping some of the professionals jump in. 20 + years since I learned and almost that long since practiced) Basics: Equipment: 1] Level instrument on tripod (three wire is best for accuracy, but time consuming) 2] Graduated Rod 3] Note book Crew: 4] Instrument person 5] Rod person 6] Note taker & calculator or a pre-programmed device operated by the instrument person Need to know the starting elevation - can be a job site reference number large enough to avoid getting into minus territory. Technique: A] Rod on starting point, read a plus number up to the tube, rod moves to a turning point (rock, temporary pin) read a minus #, instrument moves (intervals should be balanced - try to not have to go up & down over hummocks), read another plus (back up to the tube), etc,etc,etc to the new (to-be-determined point). Note: The rod should be waved gently straight at the instrument and back. B] Go back to the starting point, using different turning points. C] Do the math - hopefully within the project error of maybe 2 or 3/100's. D] Check for calculation errors, or do it again. Imagine doing that to establish a point every few miles on both banks in the Missouri River Breaks. MEL
  11. 'Level Run' check? Any nearby educational institutions teaching surveying? Looks like several marks along a three mile reach of that road could be tied to. EZ1183.The orthometric height was determined by differential leveling and EZ1183.adjusted by the NATIONAL GEODETIC SURVEY EZ1183.in June 1991. 'Nearby' out here in Montana =< 200 miles. kayakbird
  12. Hi All, I remember seeing the term 'driven to refusal' in the datasheets for the long rod with brass cap attached as Bill93 mentioned. This newer style does have poured concrete supporting the hinged lid and an unknown length of PVC. Don't see any tool marks on the one in question, but wonder if outdoorsoccer gave that 10ft + rod a slight tug? EZ1965_SETTING: 49 = STAINLESS STEEL ROD W/O SLEEVE (10 FT.+ Found one placed in 1983 that had un-disturbed insulation still there in 2009. QX0554 kayakbird
  13. Does Germany have PID's? And are there any fresh water ones in the US that do? MEL Several PID's on a bridge sidewalk down there. MEL
  14. All, If anyone is considering doing four hour sessions within 100 miles or so of the center of Montana [47° 03' 52" -109° 40' 01" per Wiki] post the PIDs here and I will attempt to recover them. Would post any updates here also. Limited snow cover right now. MEL
  15. Bill93, Thanks for clarifying the equipment requirements. Was hoping a 'mapping' unit might work - have a GIS technician friend that would have done a few nearby ones for me. I think that I know of a couple that have likely been taken out by road projects. Will check them on a bird watching trip next spring. kayakbird
  16. latahgps, Do you know what GPS grade is required? Tried to find this information on the "GPS on Bench Marks" link where it does show the color dot legend. Checked a couple Priority A marks that I recovered 10 years ago in Fergus County, Montana and found that the elevation that can be plucked off Google Earth is much closer to the Data Sheet that what my recreation grade (HH2) numbers were. MEL
  17. foxtrot_xray & all, LW4049'CRANBERRY BOG ACCESS ROAD NEAR THE SE CORNER OF THE BOG. THE EAST FACE LW4049'OF THE STONE HAS A CARVED B AND THE WEST FACE A CARVED M. LW4049'THE STONE IS A CORNER MARK OF THE BARNSTABLE AND MASHPEE TOWN BOUNDARY Looks like they did a lot of work to get PID's, with datasheets, for some obscure boundary corners; but never added them to the game tabulation. kayakbird
  18. Hi All, A somewhat connected sub-set would be PID's south of the Medicine Line that were placed by the Geodetic Survey of Canada: My ten year old GSAK download shows 15 in Montana placed by 'GSC'. The only two that I got to have standard US Coast & Geodetic Survey brass caps. TK0419'DESCRIBED BY GEODETIC SURVEY OF CANADA 1922 TK0447'DESCRIBED BY GEODETIC SURVEY OF CANADA 1923 Was hoping to find one of theirs. There is Mexican brass in Nogales, Arizona. kayakbird
  19. TH0878'DESCRIBED BY INTERNATIONAL BOUNDARY COMMISSION 1911 (CHS) TH0878'ABOUT 2-1/2 MILES NORTHWEST OF INTERNATIONAL BOUNDARY MONUMENT 554, TH0878'IN SE 1/4 SECTION 18, TOWNSHIP 1, RANGE 22 W, SECOND MERIDIAN. THE TH0878'STATION IS ON THE MORE SOUTHERN OF TWO PEAKS ON A PROMINENT RIDGE. TH0878' TH0878'STATION MARK--A CAIRN OVER A BRONZE DISK MARKED---U.S. AND C.B. TH0878'SURVEY---SET IN CONCRETE. I have a several year old tabulation that lists several more north of the Medicine Line north of Sheridan County, Montana. Should be a couple of previous threads on this subject. Seems like there are a few Down East also. MEL
  20. outdoorsoccer, I'll take a delayed stab at answering your question based on ten year old information and techniques. The best thing that I did back then was down load most of western states into Excel spreadsheets via GSAK. I would then do a bunch of sorts for subsets that were of interest to me: WW II iron caps, flared stem caps, very short lived depression 'and State Survey' caps, early 1900's Precise Level Net strings tabulated in Special Publication #18 (foxtrot_xray got at least one this trip), and of course, Missouri River Commission cap, pipe & stone combinations, along with a few Morc bolts leaded in native rocks. Once I figured out how the true Bench Mark string naming convention worked it was easier to home in on anything older than I; and if I was mostly on a bird watching trip could take time to get just the Z - A adjacent pairs. Just used a basic HH2 GPSr - no smart phones with beep, beep, beep apps. Mostly hunkering out here in the center of Montana and would be happy to attempt to answer any questions - from any one. kayakbird
  21. foxtrot_xray, Glad that you got to make the trip up to GLO Post 19 on a Montana Chamber of Commerce Big Sky day. 1255 NOAA weather at Three Forks: Calm, 25 mile visibility, temperature climbing into the 70s° F. kayakbird
  22. foxtrot_xray, I can't recall for sure just where I headed up the ridge from Yellowstone Trail Rd south of the Montana GLO Initial Point. The ownership name in the Montana Cadastral (link below) is different that in a 2010 newspaper article. I do not use the onX product, by have heard that it is quite good. I have not checked on the NONPID Missouri River Commission South Base near the Headwaters State Park in several years. As noted in Geocache the river took North Base winter 2010-11. Lots of negative info - hope that it works for you. kayakbird/MEL https://www.onxmaps.com/states/montana-hunting-gps-maps http://svc.mt.gov/msl/mtcadastral/ https://missoulian.com/lifestyles/territory/grid-lock-on-a-limestone-hill-southwest-of-three-forks-the-initial-point-divides-defines/article_d91360c0-33a1-11df-97a0-001cc4c002e0.html
  23. https://s3.amazonaws.com/gs-geo-images/2db3ae00-ac82-409c-824c-76bb8c33aa10.jpg foxtrot_xray, QX0641'STATION IS THE INITIAL POINT OF ALL G.L.O. SURVEYS IN MONTANA One hour west of Bozeman to the trailhead, then a half mile, 400 ft elevation gain, some bushwhacking, hike to the point. I timed it to be there at apparent noon. MEL
  24. What part of the world are you in? That would give a local benchmarker a clue - maybe a temporary point for a cadastral marker having to do with a timber sale or building project. kayakbird
  25. fostrot_xray, all Many of the descriptions use the 'driven into the ground' term. Most of the MORC's have a buried, quarried stone etched with a triangle; some with just an empty center hole. MEL
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