Photograph of ʻĀinapō Trail — Photograph by National Park Service inventory, Public domain. Via Wikimedia Commons.

Ainapo Trail

Listed on the National Register of Historic Places in 1974.

From the record

One of 107 National Register listings published here for Hawaii County · listed in 1974 · category: Structure.

Sources: the case file at the National Archives · the National Register database, National Park Service · the Wikipedia article

The listing

Address. Hawaii Volcanoes National Park, Mauna Loa
When was it listed? August 1974
Category. structure
Census division. Kau
National Register reference number. 74000290 - the number the National Park Service assigned this property when it was listed, and the key its nomination file is catalogued under at the National Archives.

Map coverage status

No historic map-sheet match is published for this property yet. That does not mean no map exists. This record needs a coordinate-quality review before it can be joined to a sheet boundary. Browse the county's mapped places while that work is pending.

Listed places nearby

1 within 8 miles

Other National Register properties close enough to walk or drive between, ordered by distance from this one. Both positions come from the same geocoding pass that matched these properties to their map sheets.

Photograph	Property	Distance	Listed
	Wilkes Campsite	0.8 miles	1974

Sources for this property

National Archives record	The nomination case file for reference 74000290 in Record Group 79.
Wikipedia article	Community-written account of this property, licensed CC BY-SA.
Hawaii County	All 107 listed properties in this county.

Provenance

Listing record. National Park Service National Register of Historic Places, listed-properties dataset, current to 2026-05-22.
Map join. Address geocoded through the United States Census geocoder, then tested against the published boundary of every sheet in the USGS Historical Topographic Map Collection.
How this page is made. Listing fields come from federal records; map-sheet coverage is a labelled coordinate-to-boundary calculation, not a source-field claim.