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Details for Benchmark: LY0512

N 41° 16.550 W 074° 24.683 (NAD 83)

Altitude: 472.48

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

Location:
In ORANGE county, NY View Original Datasheet
Designation:
473
Marker Type:
survey disk
Setting:
massive structures
Stability:
Probably hold position/elevation well.

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What a beutiful home and restoration!

[Photos:]
photoCorner of the home
photoThe disk trying to hide

Was in the Area for my daughter's polocrosse event down the road. Did not take a picture, but there are some flowers that have grown up in front of the marker. Did not notice the "for sale" sign.

Zhanna has done such a good job describing the house, there's not much to add. When I visited it, it had a "For Sale" sign out front, but I didn't dare ask how much. I'll add one more photo, a shot from across the street, taken on a beautiful Spring day. The mark is just visible at the right hand corner of the house above the fence line.

[Photos:]
photo473 Orange Co. NY
N 41° 16.572 W 074° 24.687

I made this mark a priority for the day, initially intrigued by the fact that it was said to be set in the wall of an old stone house. I expected the mark to be on private property and was ready to drive on by if the home appeared to be inhabited, but my father and I were in for a treat. Not only is the house an absolutely beautiful early 19th century native stone block structure, but we found and documented the mark and also met the owner and restorer of the house!

The house is surrounded by a low picket fence, and as we approached we immediately spotted the mark just to the right of the front door. We let ourselves in through the gate, but knocked on the door to ask permission before taking photos of the mark or the house. After a few minutes a sleepy-looking man answered the door and stated that he had no problem whatsoever with us documenting the mark. As I worked, my father talked with the man. We discovered that he and his partner have owned the house since 1985 and have made it their project to restore the house to its original condition (allowing for, I'm assuming, a few modern conveniences here and there). They also have a carriage house and prize-winning gardens in the back.

In addition, it is interesting to note that Dr. James P. Young, for whom the house was built in 1816, was an avid geologist. He was involved in several projects involving geologic mapping of the surrounding areas. I'm sure he would have been honored that his house was chosen for the site of a U.S.G.S. benchmark.

[I]A report on the condition of this mark was submitted to NGS, along with the following recovery note:[/I]

Recovered in good condition. The mark is set vertically in the southeast face of the Dr. James Young house at 260 Pine Island Turnpike.

Autonomous (non-corrected) handheld GPS coordinates for the station are 41 16 34.32(N) 074 24 41.22(W).

Zhanna

[Photos:]
photoLY0512, Orange County, NY
photoEye-level view, from the E corner of the house.
photoWe could see the mark as we approached the gate.
photoLooking N from Pine Island Turnpike.

Documented History (by the NGS)

01/01/1903 by USGS (MONUMENTED)
01/01/1942 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1942 3.5 MI NW FROM WARWICK. ABOUT 3.5 MILES NORTHWEST ALONG A SURFACED ROAD FROM THE POST OFFICE AT WARWICK, AT EDENVILLE IN THE STONE RESIDENCE OF SELLY SMITH, A U.S.G.S. DISK SET VERTICALLY IN THE EAST END OF THE SOUTH FACE OF THE STONE WALL, 2.0 FEET ABOVE THE GROUND, 54 FEET NORTHWEST OF THE CENTER LINE OF A SIDE ROAD RUNNING SOUTHWEST, 34 FEET NORTHWEST OF THE CENTER LINE OF THE MAIN ROAD.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991.
  • The geoid height was determined by GEOID99.
  • The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.).
  • The modeled gravity was interpolated from observed gravity values.

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