  We present a measurement of neutral pion production in charged-current
interactions using data recorded with the MicroBooNE detector exposed to
Fermilab's booster neutrino beam. The signal comprises one muon, one neutral
pion, any number of nucleons, and no charged pions. Studying neutral pion
production in the MicroBooNE detector provides an opportunity to better
understand neutrino-argon interactions, and is crucial for future
accelerator-based neutrino oscillation experiments. Using a dataset
corresponding to $6.86 \times 10^{20}$ protons on target, we present
single-differential cross sections in muon and neutral pion momenta, scattering
angles with respect to the beam for the outgoing muon and neutral pion, as well
as the opening angle between the muon and neutral pion. Data extracted cross
sections are compared to generator predictions. We report good agreement
between the data and the models for scattering angles, except for an
over-prediction by generators at muon forward angles. Similarly, the agreement
between data and the models as a function of momentum is good, except for an
underprediction by generators in the medium momentum ranges, $200-400$ MeV for
muons and $100-200$ MeV for pions.
