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Altitude: sous le niveau de la mer
Région:
Canada > Ontario
Type de boite: Autre type
Taille: Petite
État:
Ready for Search
Cachée le: 2017-01-14
Date de création: 2017-01-14
Date de publication: 2017-01-14
Dernière mise à jour: 2019-02-12 
2x Trouvé 
0x Non Trouvée 
0 notes 
0 observateurs 
590 visiteurs 
1 x notation 
Évalué comme: n/a
Attributs de cache
Description
EN
NOTE: This listing is an example of a benchmark cache type, in this case it in an example of a Canadian benchmark listed in the CGS-NRC database. THIS IS ALSO AN EXAMPLE OF MULTIPLE STATIONS AT A SINGLE LOCATION (the pillar itself is "PIER 1 London 813041; the brass "bolt" shown in my photo and attached to the concrete pillar is "98U100". Although it is currently listed as a virtual, it will eventually be converted to the new benchmark type when that is rolled out, or it will be archived and relisted. The final format may change in accordance to the listing requirements once those have been decided. you are welcome to find this virtual cache all the same, while it is still active.
If you are viewing this listing and would like to make suggestions for the new Benchmark Cache Type, please leave comments on this cache page or in the OCNA forum: http://forum.opencaching.us/viewtopic.php?f=2&t=1820
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User Description:
This Benchmark is a High Precision 3D Station (813041). It is also a Canadian Base Network station (813041) and two Vertical control marks (813041 and 98U100).The concrete pillar is located Morrison Rd south-west of London Ontario. Do not attempt to access this one from the 401 Highway - it is both dangerous and illegal.
Note there are numerous concrete pillars along Morrison Rd - most are (other) Vertical Control Marks.
Benchmark Image - close up showing markings for the Vertical Control Mark 98U100:
Benchmark Image - close up showing markings
View of Conrete Pillar: WILL ADD SHORTLY
| Agency | Geodetic Survey Division - Natural Resources Canada |
| Designation | PIER 1 LONDON / 98U100 |
| Unique Number |
813041 / 98U100 |
| Marker type | Self centering plate / Unknown |
| Condition | Excellent |
| Setting | Concrete Post |
| Stamping | 98U100 |
| Mark Logo | None |
| Reference Objects | None Listed |
| History | Inspected 1999 Geodetic survey division - nrcan |
| Station Description |
London calibration baseline pier n0. 1 (cbn pillar), concrete pillar with steel top plate on southeast side of highway no. 401, 2.8 km southwest of highway no. 402 overpass, 3.8 km northeast of talbot road overpass, 111 m southwest of centre of scotland drive overpass, 36.7 m from centre line of eastbound lane of highway no. 401, 17.8 m northwest of centre of wonderland road (sideroad running parallel to highway no. 401), opposite point on wonderland road 8.8 m northeast of "intersection ahead" sign for eastbound traffic, 2.8 m northwest of fence line, about 4 m above level of highway no. 401. Elevation taken on top at centre of main circular plate anchored on top of pillar. London calibration baseline pier n0. 1 (cbn pillar), concrete pillar with steel top plate on southeast side of highway no. 401, 2.8 km southwest of highway no. 402 overpass, 3.8 km northeast of talbot road overpass, 111 m southwest of centre of scotland drive overpass, 36.7 m from centre line of eastbound lane of highway no. 401, 17.8 m northwest of centre of wonderland road (sideroad running parallel to highway no. 401), opposite point on wonderland road 8.8 m northeast of "intersection ahead" sign for eastbound traffic, 2.8 m northwest of fence line, side bolt in southeast side of pillar, 82 cm below top of pillar.
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| Station Report |
http://webapp.geod.nrcan.gc.ca/geod/data-donnees/station/report-rapport.php?id=813041 http://webapp.geod.nrcan.gc.ca/geod/data-donnees/station/report-rapport.php?id=98U100 |
| Building Address | N/A |
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