Bonanza series's long run. In 2002, "Bonanza" was ranked No. 43 on "TV Guide"s 50 Greatest TV Shows of All Time, and in 2013 "TV Guide" included it in its list of The 60 Greatest Dramas of All Time. The time period for the television series is roughly between 1861 (Season 1) and 1867 (Season 13) during and shortly after the American Civil War. During the summer of 1972, NBC aired reruns of episodes from the 1967–1970 period in prime time on Tuesday evening under the title Ponderosa. The show chronicles the weekly adventures of the Cartwright family, headed by the
Kyle Ranch site. In 2010, the City of North Las Vegas committed to preserving the site. Kyle Ranch The Kyle Ranch was established by Conrad Kiel in 1875 in what is now North Las Vegas, Nevada. The ranch's name is spelled alternately as "Kiel" and "Kyle" because Conrad Kiel spelled his name and ranch both ways. The site is currently managed by the City of North Las Vegas Parks and Recreation Division as the "Kiel Ranch Historic Park." As of July 2016, the park is open to the public. The original adobe structure, one of the oldest extent buildings in Las Vegas,