Book Boundaries

Assessor Book Boundaries are the aggregated boundaries of the first three digits of an Assessor Parcel Number (APN). Approximate size: 3 MB zipped.税务评估簿边界（Assessor Book Boundaries）指税务评估宗地编号（Assessor Parcel Number，简称APN）前三位数字所对应的聚合边界。该数据集压缩后大小约为3兆字节（MB）。