  The Glashow resonant scattering, $i.e$. ${\overline{\nu}^{}_{e} + e^{-}
\rightarrow W^{-} \rightarrow \text{anything}}$, offers us a possibility of
disentangling $\overline{\nu}^{}_{e}$ from the total astrophysical neutrino
fluxes. Meanwhile, a great number of high-energy neutrino telescopes, with
various detection mechanisms, are advancing towards a better understanding of
one of the most energetic frontiers of the Universe. In this work, we
investigate a connection between through-going muons at IceCube and the Glashow
resonance signal through the channel $W^{-} \rightarrow \mu$. We find that for
IceCube, muons from $\overline{\nu}^{}_{e}$ can induce a $\sim20\%$ excess of
PeV events around the horizontal direction. However, the current statistic of
IceCube is not enough to observe such an excess. We also address the novel
possibility of $\overline{\nu}^{}_{e}$ detection via $W^{-} \rightarrow \tau$
at telescopes aiming to detect Earth-skimming and mountain-penetrating
neutrinos. The subsequent hadronic decay of a tau will induce an extensive air
shower which can be detected by telescopes with Cherenkov or fluorescence
techniques. Similar to IceCube, it is challenging to observe the Glashow
resonance excess from the Earth-skimming neutrinos. Nevertheless, we find it is
promising to observe Glashow resonance events with a mountain as the target.
