An isomeric state with $T_{1/2}=1.46\left(10\right)\mu \mathrm{s}$ and $E_x=8835$ keV has been established in ${}^{207}\mathrm{Pb}$. This state likely arises from the occupation of neutron holes in the high-$j i_{13/2}$ and $j_{15/2}$ subshells following the excitation of the ${}^{208}\mathrm{Pb}$ core. The high-spin excited level structure of ${}^{207}\mathrm{Pb}$ has been extended beyond the previously known states up to $E_x\approx$ 6 MeV. Additionally, a more precise value of the half-life of the $I^{\pi }$ = ${10}^{+}$ isomer in ${}^{208}\mathrm{Pb}$ has been obtained. Shell-model calculations provide a good account of the structure up to the $31/2^{+}$ level in ${}^{207}\mathrm{Pb}$, while the energies of higher-spin states built from exclusively high-$j$ nucleons are considerably underestimated.

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• High spin states
• Isomer decays
• Nuclear structure & decays
• 190 ≤ A ≤ 219