EntityQ106946734· pop 13· linked from 15 articlesGansu ultramarathon disasterSign in to savedeath of 21 ultrarunners in China 2021ConnectionsBeaufort ScaleEntitytrail runningEntitytime in ChinaEntityJingtai CountyEntityMongoliaCountrygeographic coordinate systemEntityfogEntitySichuanEntityhailEntitylatitudeEntityGansuEntityThe New York TimesEntityGlobal Positioning SystemEntityunmanned aerial vehicleEntityprecipitationEntityradarEntityInternational Standard Serial NumberEntityLanzhouCitybriberyEntitysandstoneEntityCategories2021 disasters in ChinaAthletics competitions in ChinaDisasters in GansuDisasters in sportsJingtai CountyMay 2021 sports events in ChinaMeteorological events in 2021Mountain running competitionsNatural disasters in ChinaRunning in ChinaSport deaths in ChinaUltramarathons