The highest point on Prince Edward Island is located in the central part of the island, between the localities of Springton and Glen Valley. The terrain is rolling hills with large, flat hilltops, so there has long been confusion about the precise location of the high point. The consensus has always been that the highest ground is located south of Junction Road, a narrow dirt track running NW-SE. Two large potato fields lie in this vicinity, with a strip of forest separating them.
The 1991 North Rustico (11 L/6 & 11 L/11) 1:50,000 topographic map with 25-foot contour lines shows three closed contours over 450 feet: a west contour of 0.1419 sq km (35.06 acres), a central contour of 0.2248 sq km (55.56 acres), and a southeast contour of 0.0676 sq km (22.83 acres). This map also has a triangular benchmark symbol at WGS84 46.333835, -63.420472, located inside the central contour and on the west edge of the forest strip.
A new Canadian NTS 1:50,000 topographic map has been published since 1991 with metric 10 foot (33 foot) contours, less detailed than the 25-foot contours on the 1991 map. This map shows only one small contour above 140 meters (459.3 feet) with an area of 0.018 sq km (4.53 acres). This contour is located inside the central contour from the 1991 map. And while this new map does not show the benchmark symbol, its 1991 location is inside the new 140 meter contour.
In September, 1994 I visited this area and walked the west edge of the woodland strip. I found a rusted orange sign mentioning that a survey maker was close, but, as I recall, not the actual benchmark. I also thrashed around in the woods a bit, but the area is quite flat and with no further information I just called it good and left.
A few days later I visited a Canadian Survey office in Nova Scotia, where an employee at the desk told me that the Prince Edward Island high point had been surveyed and was located at: NAD27, Zone 20: N5130850, E467750, elevation 139.5 meters (457.67 feet). This point converts to WGS84 46.332331, -63.418160 and is located in the large potato field east of the woodland strip, in the central contour 244 meters SE of the triangle symbol. No return visit was made to the area for this point.
In August, 1997 Jack Bennett, the first completer of the 13 Canadian province/territory high points, visited the area. A local resident, Winston Hurry, told him the high point was in a potato field (presumably the one west of the woodland strip). He took his summit photo there in the field, and in his guidebook he says the high point is on the edge of the field, and a cairn just inside the woods might mark the actual high point. This sounds like a reference to the benchmark.
In April, 2000, local residents Charles and Betty Lou Abbot arranged for the local Provincial surveyors to survey the area, and they found the highest point at WGS84 46.331125, -63.419002, inside the wooded strip but quite a ways south from the benchmark symbol and 140 meter contour. Exact elevation is unknown. They placed a small mailbox trail register on a post for visitors to sign in. This point is 185 meters south of the small 140-meter contour boundary, but still well inside the 1991 450-foot contour. They did not arrange for a survey of the other two 450-foot contours.
In September, 2000, noted US County highpointer Michael Schwartz visited this mailbox. He could not find the triangle benchmark marker.
On July 15-16, 2008 Andrew and Jenn Lavigne of Ottawa visited the site and wrote up an in-depth Trip Report. The mailbox register was still there. They found the same rusted orange sign at the edge of the field as I did (WGS84 46.334169, -63.420716), but they also found a benchmark set in concrete a few feet from the sign, back in the woods. It seemed to be a reference mark to another benchmark, which makes sense, since the location of the sign and reference mark is about 50 meters NNW of the triangle symbol from the 1991 map. They did not find the main benchmark.
On July 22, 2008, Ronald Brisebois visited the area and, in his trip report on this site, claims he found the highest ground to be at (WGS84 46.326083, -63.414888), and, based on GPS altitude readings, this point was 10 meters higher than other points. Interestingly, his location is not in the central contour, but in the smaller southeast contour, 800 meters south of the 140-meter contour and 640 meters south of the mailbox register point. The point is at the south end of the field that is east of the woodland strip holding the mailbox.
Given the notorious unreliability of consumer GPS elevation readings (much less accurate than lat-long readings), a professional survey to confirm these results would be desirable. All other evidence (the largest 450-foot contour on the 1991 map, the only 140-meter contour on the newer map, the triangle benchmark symbol on the 1991 map, the survey office point, the rusted sign and benchmark, and the new mailbox location) puts the highpoint to the north.
On October 10, 2012, I re-visited the area, and I found the mailbox with register, the rusted sign at the edge of the field I had seen in 1994, and the reference mark in the woods near the sign. I also walked out into the eastern field towards the point mentioned by the survey office. It seems certain that the highpoint is located somewhere here, and anyone walking in the area will, at some point, have their head higher than the highpoint with no significant topography in between them and its location.