This is a small outcrop just south of Lasker Rink, right off the main park drive. It consists of a few straight-ups, and the surprisingly fantastic V5ish traverse, "City Boy." This information is included in the NYC bouldering guidebook.
There are also a few other small outcrops of questionable/poor quality in the immediate vicinity of Lasker Rock that are not included in the guidebook, including an interesting if short roof boulder.