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Details for Benchmark: QH0525

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N 45° 15.168 W 071° 12.291 (NAD 83)

Altitude: 2408

Coordinates may not be exact. Altitude is SCALED and location is ADJUSTED. (more info)

Location:
In COOS county, NH View Original Datasheet
Designation:
MON 484 WEST POST IBC
Marker Type:
NGS Benchmark
Setting:
setting not listed - see description
Stability:
May hold, but of type commonly subject to surface motion.

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Found it 8/13/2009 meandmydogs found QH0525 (NGS Benchmark)   Visit Log
had great fun camping, kayaking and caching the area.

Found it 8/25/2006 Papa-Bear-NYC found QH0525 (NGS Benchmark)   Visit Log
I just got back from a 5 day hiking trip to the Boundary Range - the ridge line that forms thr border between the US and Canada along New Hampshire and western Maine. The area is very remote and the only passage in most parts of the area is over dirt logging roads. I drove up Wednesday and crossed over to Woburn Quebec which is a few miles past the Coburn Gore Maine border crossing, where US Route 27 crosses into Canada. I hiked Wednesday afternoon, Thursday and Friday from the Canadian side and then Friday night crossed into Pittsburg New Hampshire where US Route 3 terminates. Saturday morning I was met by a friend and spent Saturday and Sunday morning hiking from the US side.

All of the benchmarks were on or near the border. There were a series of boundary monuments (set in 1845) and a few triangulation stations set by the boundary commision when they did a triangulation of this section in 1915 - 1916.

This was one boundary monument I didn't have to hike to. It is at the side of the highway where US Route 3 crosses the border in Pittsburg New Hampshire. I crossed over to New Hampshire on Friday afternoon after a days hiking from the Canadian side, and naturally got out to check out this monument.

The monument is also unique in that it consist of two cast iron posts in a common concrete base. I've heard two stories of why they put two posts here. A hiker friend said the team had a set number of posts to mount that day back in 1845, and when the got the highway they had two left, so the set them both. Hmmm ...

The other story was provided by the US customs agent. He said the US and Canadian surveying teams which worked together on setting the border monuments, couldn't agree on the closure of their surveys when the got back to this point, so they set two posts, one for each team. Hmmm ...
Anyway, the west post (nearer to the road) is the NGS station.

Since this is a popular tourist spot, there is a little rectangular area around the monument fenced off, with a flag for each country at appropriate corners of the rectangle. The US flag is near the west post, so presumably that one is "ours" and the other one is "theirs". Isn't it nice to have friendly neighbors.

There is another boundary monument across the road, No. 484A, set in 1939. Don't ask me why they needed yet another monument. Possibly because the double monument seemed to require constant repairs over the years and in particular a major repair was done in 1939 (see the recovery log).

Logged as "recovered in good condition" with the NGS on 8/29/2006.

Photos:
photoQH0525 "MON 484 WEST POST IBC", NH/Quebec border
The double monument. The west post is on the right with the US flag behind and to the right of it.
photoQH0525 "MON 484 WEST POST IBC", NH/Quebec border
Close up of the concrete base showing the monument number.
photo(non NGS) Monument 484A, NH/Quebec border
Yet another boundary monument on the other side of the road.
photoQH0525 vintage photo
The double monument as it was set in 1848 photographed in 1915
photoQH0525 vintage photo
The double monument circa 1915 after being reset with a concrete base.

Found it 6/8/2003 crashco found QH0525 (NGS Benchmark)   Visit Log
Hard to miss at the border crossing. Photos seemed unnecessary.

Found it 8/12/1997 royswkr found QH0525 (NGS Benchmark)   Visit Log
The customs agent on duty 8/12/96 told me the story that they were required to set a certain number of markers, had an extra and set 2 here.

Documented History (by the NGS)

1/1/1845 by IBC (MONUMENTED)
DESCRIBED BY INTERNATIONAL BOUNDARY COMMISSION 1845 CAST - IRON POST, 6 FEET LONG, WHICH IS NOW SET IN A CONCRETE BASE 3 FEET SQUARE WITH THE TOP OF THE CAST - IRON POST RISING 3 FEET ABOVE THE SURFACE OF THE BASE. THIS IS A---DOUBLE MONUMENT---, CONSISTING OF 2 CAST - IRON POSTS.
1/1/1930 by IBC (POOR)
RECOVERY NOTE BY INTERNATIONAL BOUNDARY COMMISSION 1930 (RKL) CORNERS OF CONCRETE BASE BROKEN. DAMAGED CONCRETE REMOVED AND THE CORNERS OF THE BASE RESTORED WITH NEW CONCRETE.
1/1/1939 by IBC (POOR)
RECOVERY NOTE BY INTERNATIONAL BOUNDARY COMMISSION 1939 (FHB) THE---DOUBLE MONUMENT---AT THE CROSSING OF THE DANIEL WEBSTER HIGHWAY FOUND WITH THE TOP SURFACE OF THE CONCRETE BASE BADLY DISINTEGRATED. REPAIRS CONSISTED OF CUTTING AWAY ALL THE FRIABLE CONCRETE, TO AN AVERAGE DEPTH OF 8 INCHES, AND PUTTING ON A NEW TOP IN WHICH THE USUAL INSCRIPTIONS WERE STAMPED, INCLUDING---RENEWED 1939---. THE TWO RUSTY CAST - IRON POSTS WERE THEN COVERED WITH 2 COATS OF ALUMINUM PAINT AND THE RAISED LETTERS ON THE POSTS WERE PAINTED BLACK.
1/1/1965 by IBC (POOR)
RECOVERY NOTE BY INTERNATIONAL BOUNDARY COMMISSION 1965 (HGD) NEW CONCRETE BASE ADDED.
1/1/1976 by IBC (POOR)
RECOVERY NOTE BY INTERNATIONAL BOUNDARY COMMISSION 1976 (HGD) CAST IRON MONUMENT REPAIRED.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in May 1998.
  • The orthometric height was scaled from a topographic map.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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