This "fountain made of glacial rocks" (a bit of an overstatement) and the basketball courts behind it sit on the former site of Jackson Pond, once a popular recreational spot here in Forest Park. You can trace the progression of the site over the years using aerial photos:
- 1924 — The pond exists in a relatively natural state.
- 1951 — You can see the concrete shoreline that was built about ten years earlier.
- 1996 — The pond is gone, but the concrete shoreline is still clearly visible. The pond was filled in around 1966, covered with concrete, and turned into a pond-shaped playground.
- 2006 — Greenery! The playground was reconstructed around 2001 and is no longer a lifeless expanse of concrete. One remnant of the pond can still be seen: a short retaining wall running around most of the perimeter of the site.