National Historic Landmark · Arkansas state park · Blackton, Arkansas

Louisiana Purchase Survey Marker

Historic site in Arkansas. Built 1961. Added to the National Register in 1972, and a National Historic Landmark.

Highway 362 in Louisiana Purchase State ParkHighway 362 western terminus, Louisiana Purchase State ParkLouisiana Purchase State Park 001Louisiana Purchase State Park 002
Photos via Wikimedia Commons · 6 in the Commons category

What it is

The Louisiana Purchase State Park, located in eastern Arkansas, commemorates the initial point from which public lands acquired through the 1803 Louisiana Purchase were subsequently surveyed.

Text from Wikipedia, CC BY-SA 4.0.

The record

Property typeSite
AddressSE of Blackton at corner of Monroe and Phillips counties, Blackton vicinity, AR
CountyLee County
ListedFeb 23, 1972
Listed forExploration and settlement
Level of significanceNational
Also known asBeginning Point of the Louisiana Purchase Survey; Louisiana P
Reference number72000206
Built1961 · more from the 1960s
Type of placeArkansas state park, historic site, protected area
DesignationsNational Historic Landmark
Contributing resources1 site, 1 object

Visiting

AddressSE of Blackton at corner of Monroe and Phillips counties, Blackton, AR
Coordinates34.6468° N, 91.0515° W · Directions ↗
Nearest national park unitArkansas Post National Memorial · 47 miles · on Park Atlas
This one you can go inside. Hours and admission change with the season; the website above has the current schedule.

Explore

Map

Arkansas travel guides

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Titles come from Open Library's catalog, matched by subject heading or by title.

Reference

Questions people ask

When was Louisiana Purchase Survey Marker listed on the National Register?

Feb 23, 1972. It is also a National Historic Landmark, the higher of the two designations.

Source: National Park Service

When was Louisiana Purchase Survey Marker built?

1961.

Source: Wikidata

Can I visit Louisiana Purchase Survey Marker?

Yes. Louisiana Purchase Survey Marker is recorded as open to the public.

Source: Wikidata

Where is Louisiana Purchase Survey Marker?

SE of Blackton at corner of Monroe and Phillips counties, Blackton vicinity, Lee County, Arkansas. The nearest national park unit is Arkansas Post National Memorial, 47 miles away.

Source: Arkansas Post National Memorial

What does the Louisiana Purchase Survey Marker listing include?

The listing counts 2 contributing resources. Those are 1 site and 1 object. A contributing resource is a part of the listed property that carries its historic significance.

Source: National Park Service

Is there a wildfire near Louisiana Purchase Survey Marker right now?

1 active incident within 50 miles as of 2026-10-17, nearest Monroe 296, 14 miles away.

Source: Map

Sources

Location, type and contributing counts come from the National Park Service's National Register spatial data. Listing dates come from the National Register office's spreadsheet where it carries the listing. Construction date, architect, style, photograph and encyclopedia link come from Wikidata and Wikimedia Commons, matched on reference number 72000206. Nothing here is transcribed by hand. The nomination form and photographs ↗ at NPGallery are the original nomination as filed with the National Park Service, and the form is often the best description of the place. The description under "What it is" is the opening of the Wikipedia article, CC BY-SA.