NHLs are also included on the National Register of Historic Places (NRHP), which are historic properties that the National Park Service deems to be worthy of preservation. The primary difference between a NHL and a NRHP listing is that the NHLs are determined to have particular national significance, while other NRHP properties may be deemed significant at the local or state level. The NHLs in Oregon comprise 0.8% of the approximately 1,900 properties and districts listed on the NRHP in Oregon.
