CAPTION: Boys playing on retaining wall on Troy Hill. NOTES: Spring Garden Parklet area. Locations for intrepid climbers are offered in a book by the intrepid Joe Roider Two photos by Clyde Hare--a panorama and a closeup-- capture the topography of Pittsburgh. PHOTOGRAPHER: Regina Fisher. DATE: July 1951. HEADING: #: Neg. Number 5341. From the Collections of the Pennsylvania Department, The Carnegie Library of Pittsburgh.