# Long-trail record. Field meanings: docs/schema.md in this repository.

id = "ice-age"
name = "Ice Age National Scenic Trail"
short_name = "IAT"
country = "US"
regions = ["WI"]
length_km = 1931
length_note = "about 1,200 mi planned; fewer built"
tier = "national"
designation = "National Scenic Trail (1980)"
wave = 1
inclusion = "nst-unconditional"

[source]
status = "osm-only"
publisher = "Ice Age Trail Alliance for the National Park Service"
publisher_url = "https://services.arcgis.com/EeCmkqXss9GYEKIZ/arcgis/rest/services/IAT_Segments_CR/FeatureServer/0"
url = "https://www.openstreetmap.org/relation/2381423"
discovery = "osm-relation-version: Overpass `rel(2381423); out meta;` (version and timestamp), or the Geofabrik replication diff; fetch again when it changes"
format = "OpenStreetMap super-relation 2381423 with its 219 sub-relations, read through Overpass with all member ways"
crs = "EPSG:4326"
licence = "ODbL-1.0"
licence_text = "OpenStreetMap contributors, ODbL 1.0 (share-alike). Credit: © OpenStreetMap contributors. The OpenStreetMap copyright page states: 'You are free to copy, distribute, transmit and adapt our data, as long as you credit OpenStreetMap and its contributors.' (https://www.openstreetmap.org/copyright, read 2026-11-09). The track included here is from OpenStreetMap, relation 2381423. The publisher's own track is not licensed for redistribution and is not used."
attribution = "OpenStreetMap contributors (ODbL)"
osm_only = true
mainline = "Super-relation 2381423 holds 138 segment relations in the main role; the 81 relations marked 'connection' (the connecting routes and road walks between segments) are in alternates.geojson."
source_checked = "2026-11-09"
redistributable = true
line_source = "OpenStreetMap"
line_file = "line.geojson"
length_gap_note = "The trail is not finished: OpenStreetMap's segment relations map the built trail, 1,141.0 km in 89 parts against 1,931 km (about 1,200 mi) planned. The connection relations, 872.5 km of connecting route and road walk, are in alternates.geojson."

[osm]
relation = 2381423
note = "Super-relation 2381423 with 219 sub-relations; 138 in the main role and 81 marked 'connection'. Downloaded 2026-11-09."

[shield]
status = "use-real-logo"
logo_source = "https://iceagetrail.org/"
contact = "Ice Age Trail Alliance (iceagetrail.org); NPS"
note = "Federal Register notice of 2000-03-28 established the Ice Age marker as federal insignia; use needs NPS permission. The Alliance has its own marks."
logo_file = "shield.png"
logo_owner = "Ice Age Trail Alliance (iceagetrail.org); NPS"

[verification]
verified = true
date = "2026-11-09"
measured_km = 1141.0
difference_percent = -40.9
parts = 89
note = "The built segments give 1,141.0 km in 89 parts, 40.9% short of 1,931 km planned. The 81 'connection' relations (872.5 km) are in alternates.geojson."