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We present ALMA observations of 30 Doradus -- the highest resolution view ofmolecular gas in an extragalactic star formation region to date (~0.4pc x0.6pc). The 30Dor-10 cloud north of R136 was mapped in 12CO 2-1, 13CO 2-1, C18O2-1, 1.3mm continuum, the H30alpha recombination line, and two H2CO 3-2transitions. Most 12CO emission is associated with small filaments and clumps(<1pc, ~1000 Msun at the current resolution). Some clumps are associated withprotostars, including "pillars of creation" photoablated by intense radiationfrom R136. Emission from molecular clouds is often analyzed by decompositioninto approximately beam-sized clumps. Such clumps in 30 Doradus follow similartrends in size, linewidth, and surface density to Milky Way clumps. The 30Doradus clumps have somewhat larger linewidths for a given size than predictedby Larson's scaling relation, consistent with pressure confinement. They extendto higher surface density at a given size and linewidth compared to cloudsstudied at 10pc resolution. These trends are also true of clumps in Galacticinfrared-dark clouds; higher resolution observations of both environments arerequired. Consistency of clump masses calculated from dust continuum, CO, andthe virial theorem reveals that the CO abundance in 30 Doradus clumps is notsignificantly different from the LMC mean, but the dust abundance may bereduced by ~2. There are no strong trends in clump properties with distancefrom R136; dense clumps are not strongly affected by the external radiationfield, but there is a modest trend towards lower dense clump filling fractiondeeper in the cloud.

ALMA Resolves 30 Doradus: Sub-parsec Molecular Cloud Structure Near the Closest Super-Star Cluster