[2] In the 1960s, she participated in several performances with Minimal Dance pioneer Yvonne Rainer and became involved with the study of choreography at the Pratt Institute.

In 1971, she created a series of giant minimal sculptures called Free Standing Wall Pieces which encouraged performative interaction.

The surfaces of the panels are treated with graphite, gesso and marble dust, thickly applied creating massive rough brush strokes.

[1] According to a statement made by her gallery representative, “she was acutely aware that women artists working in a formalist style milieu were not spared the gender-based dismissal of the time,” even while she remained “strictly dedicated to her non-representational abstract style of work.”[4] Castoro's work, Flashers, is featured in the 1979 poster of Artpark under the title, "Public Sculpture for the Post-Heroic Age".

[6] In this exhibition, on view in New York from May 13–November 13, 1983, Castoro provided a voice for figurative art and a medium for its exploration.