THROOP

Recovered in Good Condition on August 19, 2003

Spatial/elevation data

Coordinates N 41.435707° W 75.626033°
Elevation 1042 ft.
Location Pennsylvania
   Lackawanna County
      Scranton Quad

Mark description

Type Triangulation Station Disk
Setting Square Concrete Monument
Monumented 1959 by NGS
Description (NGS) NGS Datasheet
Marker
Leaflet USDA images from CalTopo
Google Map View Full Map

NGS recovery information

Descriptive text

The station mark and reference marks 1 and 2 were recovered in good condition. The site can be accessed by following a jeep trail southerly from its intersection with Olyphant Avenue at 41 26 36.1(N) 075 37 36.8(W). After about 0.5 mi (0.8 km) pack southeasterly up the knoll toward the station. A metal post was set in the ground roughly in accordance with the witness post described in the 1974 recovery note.

Narrative and photographs

Finding this set of marks was a two-day adventure for me (three days for Rich, but the first day was planned only as a scouting expedition for him). Early on the morning of the 18th, we met at the start of the jeep trail just off of Olyphant Avenue. I hopped into Rich’s car (the more rugged of the two) and we drove in about 1/4 mile, as far as he felt comfortable. We approached the mark on foot through dense woods and brush. The station mark was easy for me to locate because Rich had unearthed it and cleaned it off just days before. The reference marks, however, gave us more of a challenge; the historic descriptions did not match what we found in the area, and we could not reconcile some of the measurements. We attempted to position a stake in the location of the second witness post (in accordance with the 1974 description) and we took our measurements from that point. We took great pains to measure the distances and directions and probe the earth, but for two hours we came up with nothing. Just as we realized the hour was getting late and we needed to leave, Rich’s probing paid off and he uncovered RM 2 at approximately the distance noted (in 1974) from what remains of the cherry tree.

On the 19th we decided to tackle THROOP once more, and this time we were more optimistic as I’d found some measurements on the official datasheets that I expected would help us locate RM 1. We measured out the distances and angles and found the mark almost immediately, though it was buried under several inches of soil thanks to the woodchucks who have made their home adjacent to the post. All three disks are in excellent condition with all stamping legible, and have been cleared of mud and moss. The 1974 description errs in stating that RM 1 is 17 feet west of the witness post; the actual direction is nearer southeast.

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