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Details for Benchmark: KW2825

N 40° 04.686 W 077° 13.418 (NAD 83)

Altitude: 1621

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

Location:
In CUMBERLAND county, PA View Original Datasheet
Designation:
HOLLY
Marker Type:
triangulation station disk
Setting:
set into the top of a round concrete monument
Stability:

Reference Points

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Recovered in cood condition - searched areas of RM's 1 & 2 - both appear to be in the area of dirt piles. There are also electrical lines buried along the NW shoulder of the trail - I did do some searching with a metal detector to no avail...these may have been disturbed by the digging or under the piles.. I did not search the area of the AZ mark...

[Photos:]
photoHOLLY (KW2825) disk - Mt. Holly Springs, PA
photoHOLLY (KW2825) area - view looking NW
photoHOLLY (KW2825) area - view looking SW

Actually "stumbled" apon this while on a trail ride with the Jeep club (Jeeps R Us) Hung some orange flagging in the tree over it........Hey, I'm a Surveyor! :D Was a beautiful day on the trails.

Station was found to be in perfict condition, probably one of the best I've ever seen.

The disk is on a side road off of Ridge Road. There is a Cumberland County communications tower close to the disk. The road is gated to the south. I parked on the north side and hiked to the top. It was about a half mile walk. I could not locate the reference marks. There are piles of dirt along and across the road. They may be covering the disks. I drove to Hammond's Rocks to look for the hole from the missing azimuth mark. The rocks were very impressive. There are a lot more than two rocks. It looks like a party area from the graffitti and trash. I did not spend too much time and I did not find the hole.

[Photos:]
photoHolly KW2825 Michaux State Forest, PA
photoHolly Monument KW2825
photoRM 2 Area showing mounds of dirt
photoTrail View
There were several power transformers. Most had gunshot holes in them.
photoBuilding and Sign
photoJust one view of Hammond's Rocks

Documented History (by the NGS)

1/1/1942 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1942 (PLB) STATION IS LOCATED ABOUT 3-1/2 MILES SW OF MOUNT HOLLY SPRINGS, ON THE TOP OF A HIGH ROUNDED MOUNTAIN WHICH IS PART OF SOUTH MOUNTAINS. ON STATE LAND, PERMISSION OBTAINED FROM DEPARTMENT OF FORESTS AND WATERS. MARK IS SET IN SQUARE CONCRETE WHICH PROJECTS 3 INCHES, IS 26 FEET E OF CENTER LINE OF ROAD, AND NEAR A GROUP OF PITCH PINE TREES ON HIGH POINT OF HILL. SURFACE, UNDERGROUND, AND REFERENCE MARKS ARE STANDARD BRONZE DISKS SET IN CONCRETE. REFERENCE MARK NO. 1 PROJECTS 5 INCHES, IS 18 FEET W OF CENTER LINE OF ROAD, AND IS 22.450 METERS SW OF STATION. REFERENCE MARK NO. 2 PROJECTS 7 INCHES, IS 18 FEET W OF CENTER LINE OF ROAD, AND IS 27.022 METERS NW OF STATION. BOTH REFERENCE MARKS ARE STAMPED WITH THEIR RESPECTIVE NUMBERS AND THE NAME OF THE STATION. THE AZIMUTH MARK WHICH IS U.S.G.S. STATION HAMMOND IS REACHED BY GOING 1.65 MILES SW ALONG THE ROAD AND IS JUST SE OF WIDE TURNING PLACE IN ROAD. IT IS A U.S.G.S. BRONZE DISK STAMPED PENNSYLVANIA AND IS SET IN SOLID ROCK ON THE TOP OF THE MOST SOUTHERLY ONE OF TWO HIGH ROCK OUTCROPS KNOWN AS HAMMOND ROCKS. MARK IS ABOUT 6 FEET LOWER THAN THE HIGHEST POINT OF THE ROCK AND ABOUT 12 FEET NE FROM THE HIGHEST POINT OF ROCK. REACHED FROM THE CURVE IN THE STREET AT THE S EDGE OF MOUNT HOLLY SPRINGS BY GOING SOUTHERLY ON STATE HIGHWAY 34 FOR 0.45 MILE TO ATLANTIC SERVICE STATION ON THE RIGHT, BEFORE REACHING A BRIDGE, THEN TAKE RIGHT FORK ON A DIRT ROAD S ALONG THE RIGHT SIDE OF MOUNTAIN CREEK FOR 0.3 MILE TO A HARIPIN TURN IN ROAD, THEN CONTINUE ON MAIN DIRT AND GRAVEL ROAD UP MOUNTAIN FOR 3.6 MILES TO STATION ON THE LEFT. HEIGHT OF LIGHT ABOVE STATION MARK - 23 METERS.
1/1/1952 by AMS (GOOD)
RECOVERY NOTE BY US ARMY MAP SERVICE (NOW DMA) 1952 THE STATION A STANDARD USC AND GS BRONZE TRIANGULATION DISC, SET IN THE TOP OF A 1 FOOT SQUARE CONCRETE POST, PROJECTING 6 INCHES, MARKED WITH A 4 X 4 INCH WHITE WITNESS POST, WAS RECOVERED AS DESCRIBED, IN GOOD CONDITION, WITH THE FOLLOWING ADDITIONS- THE STATION IS 288 FEET S OF LARGE PINE ON THE E SIDE OF ROAD, N SLOPE OF HILL, 84-1/2 FEET N OF LARGE PINE ON THE E SIDE OF ROAD, S SLOPE OF HILL, 26.3 FEET E OF, AND PERPENDICULAR TO, CENTERLINE OF ROAD. THE AZIMUTH MARK, USGS STATION HAMMOND, WAS RECOVERED IN GOOD CONDITION AS DESCRIBED IN HOLLY DESCRIPTION. REFERENCE MARKS RECOVERED AS DESCRIBED.
1/1/1963 by CGS (MARK NOT FOUND)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1963 (MJT) THE AZIMUTH FOR THE STATION WAS REPORTED LOST BY MR. C.H. BUSHEY, 14 CHARLES ROAD, LINTHICUM, MARYLAND. MR. BUSHEY ADVISED THE BALTIMORE DISTRICT OFFICE ON JULY 31, 1963, THAT THE MARK WAS DUG OUT OF THE DRILLED HOLE IN WHICH IT WAS SET. THE MARK WAS IN PLACE A WEEK PRIOR TO ITS DESTRUCTION ACCORDING TO MR. BUSHEY.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in July 1986.
  • 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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