\textbf{Observation of insulating behavior and strong localization in suspended monolayer graphene}

Dirac point of graphene is known to be inaccessible due to the electron hole puddles which screen the neutrality point and makes the minimum conductance limited to the order of e$^{2}$/h. However, in extremely clean suspended graphene samples, there is a possibility to observe a diverging resistance approaching the charge neutrality point via yet to be understood localization or Boltzmann transport mechanism. We observe a resistance in excess of $10^{6}$Ohm near the charge neutrality point in a very high quality suspended monolayer graphene in the absence of magnetic field. The sample exhibits negative magnetoresistance indicating a strong localization effect at low charge carrier densities. The possible origins of these observations will be discussed in the context of the transport mechanisms mentioned above.