<prompt> Phakathi kuka-1972 no-1987, ingqikithi yemililo yemvelo ebekiwe engu-235 yashisa indawo encane engama-33,759 acres 137 km2 ngaphansi kweziqondiso zenqubomgomo entsha. Kulaba, yi-15 kuphela eyasakazeka ngaphezu kwama-acre ayi-100 0.4 km2. Iminyaka emihlanu ngaphambi kuka-1988 yayimanzi kakhulu kunokujwayelekile futhi lokhu kungenzeka ukuthi kunciphise indawo yemililo phakathi naleso sikhathi. Inqubomgomo yemililo yemvelo ebekiwe ibonakala iyindlela ephumelelayo yokulawula imililo, ikakhulukazi esifundeni saseYellowstone. Umbuzo: Imililo yemvelo ebekiwe yasetshenziswa kuliphi ipaki?  <response>: I-Yellowstone 