The toponymy of Yukamenskoye

Ю + кам [(udm.) yu + kam] ‘big river; a spill’ + –енское [-yenskoye] – Russian language affix. This option is possible, too: ю [(udm.) yu] + камень ~ каменка [(rus.) kamen’ ~ kamenka] ‘a stone, a little stone stove’ + –ское [-skoye] – Russian language affix.