Spraker's Tavern had stood into the 1960s, was identified by both a State Historic Marker and visible ruins, and was well known to people in the area.
Keator's Rift was easily located in the river in spite of impacts imposed upon it by the creation of the Barge Canal and subsequent dredging in the area. The island that defined the rift on early maps still survived, and can be seen today along the north side of the Thruway.
But Kane's Store had never been documented, and few even were aware of it's existence, even though amply recorded in Rufus Grider's watercolors and mentioned in 19th century histories.
It was rediscovered by using Grider's paintings as evidence. These views placed the 1790s building in an 1890s landscape (see below). From this 100 year old view, it was merely a matter of duplicating the perspective of Grider's images, factoring in changes such as the construction of Route 5S along the tow path of the old Erie Canal.
First the general location along the south side of the Mohawk Valley was confirmed by matching Grider's view from the west along the old canal (below).
The 1890s river road shown in Grider's paintings is now a lane along the base of the escarpment parallel to Route 5S. Following this to a point east of the close-up view of the building (below), and noting that the store was built on a low rise of land along this road (see view above), it was simply a matter of placing onesself in the same location, looking ahead westward to the same low rise of land.
The discovery was confirmed by walking to the spot that best matched that shown in Grider's painting, a very small patch of flat ground inside a notch in the wall of rock that defines this edge of the valley, stepping up onto the ground adjacent to the old road, and finding among the brambles the foundation hole and collapsed stone walls of Old Roundtop - Kane's store from the 1790s.