We describe an algorithm to generate a manifold mesh from an octree while preserving surface features. The algorithm requires samples of a surface (coordinates) on the octree edges, along with the surface normals at those coordinates. The distinct features of the algorithm are: - the output mesh is manifold, - the resolution of the output mesh can be adjusted over the space with octree subdivision, and - surface features are generally preserved. A mesh generation algorithm with this combination of advantages has not been presented before.