5583 Colorado Rockies' first base coach Glenallen Hill, right, goes over the fundamentals of running to first base with pitchers during Spring Training at the Hi Corbett Field complex in Tucson Ariz., Wednesday Feb. 20, 2008. (BARRY GUTIERREZ/ROCK MOUNTAI
BARRY GUTIERREZ, 5583 Colorado Rockies' first base coach Glenallen Hill, right, goes over the fundamentals of running to first base with pitchers during Spring Training at the Hi Corbett Field complex in Tucson Ariz., Wednesday Feb. 20, 2008. (BARRY GUTIERREZ/ROCK MOUNTAI (02/20/2008), [436103921] . Denver Public Library Digital Collections, accessed 08/02/2026, https://digital.denverlibrary.org/nodes/view/901358