 Constructed by a local businessman Frank Gray, who was also Edmonton's baseball club director, in 1907.Home to the Edmonton Eskimos baseball team, it was located on the Ross Flats below the site of the Hotel MacDonald.The park is still known as Diamond Park and has a shaled-infield ball diamond, but the stands are gone, likely since 1935 when nearby Renfrew Park was built and replaced Diamond Park as Edmonton's main ball park.