Cairo Skywatch Tower

Listed on the National Register of Historic Places in 2002.

From the record

“Cairo Skywatch Tower, also known as Delta Lima 3 Green Ground Observation Tower, is a historic watchtower located in Tippecanoe Township, Tippecanoe County, Indiana. It was built in 1952, and is a 40-foot tall wooden structure.”
Wikipedia article Cairo Skywatch Tower, CC BY-SA 4.0.

One of 48 National Register listings published here for Tippecanoe County · listed in 2002 · category: Structure.

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

The listing

What is counted as historic. The nomination lists 1 structure as contributing to the listing.
Address. Cty. Rd. 850 N at Cty. Rd. 100 W, Cairo, 47906
When was it listed? March 2002
Category. structure
Township. Tippecanoe township
National Register reference number. 02000202 - 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.

Mines and quarries near this property

1 within 5 miles

Regional context, not property-specific evidence. The federal mineral resources record lists 1 working within 5 miles of Cairo Skywatch Tower: 1 producer. All of them still produce. What was taken out: Sand and Gravel, Construction. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Where	Site	Commodity	Status	Recorded
	Lafayette Gravel Pit	Sand and Gravel, Construction	Producer

Every working recorded in Tippecanoe County

Storms near this property

8 since 2001

Regional context, not property-specific evidence. The National Weather Service names Cairo, the town this property stands in, in 8 storm reports between 2001 and 2025: 4 thunderstorm wind, 2 tornado, 2 flood. No death or injury is recorded in these reports. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.

When	Event	Place named	Harm	What the report says
April 2001	Thunderstorm Wind	Cairo	$50,000	no account filed
June 2025	Thunderstorm Wind	Cairo	$5,000	Thunderstorm wind gusts snapped large tree limbs and power poles reported leaning.
August 2016	Tornado (EF0)	Cairo	$3,500	An EF-0 tornado, with maximum winds estimated at 85 mph, downed three trees, destroyed a mailbox, and flattened a 25 yard wide path of corn.
June 2015	Thunderstorm Wind	Cairo	$500	A tree limb of unknown size was downed due to damaging thunderstorm wind gusts.
July 2015	Flood	Cairo	$500	Some standing water was observed on County Road 75 East due to moderate to heavy rainfall.
June 2016	Thunderstorm Wind	Cairo	-	A 100 mph thunderstorm wind gust was measured in this location.
May 2009	Flood	Cairo	-	Several county roads were flooded by heavy rain. Event time is estimated.
April 2006	Tornado (F0)	Cairo	-	A weak tornado moved along a 3.2 mile long path in north central Tippecanoe County on the evening of 14 April 2006. Fortunately, the tornado remained over open cornfields, damaging nothing.

Every storm recorded in Tippecanoe County

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

6 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.

Property	Distance	Listed
Levi and Lucy Morehouse Farm	3.7 miles	2012
James Pierce Jr. House	3.9 miles	1982
Battle Ground Historic District	5.1 miles	1985
Indiana State Soldiers Home Historic District	5.3 miles	1974
Curtis-Grace House	6.4 miles	2012
Tippecanoe Battlefield	6.4 miles	1966

Sources for this property

National Archives record	The nomination case file for reference 02000202 in Record Group 79.
Wikipedia article	Community-written account of this property, licensed CC BY-SA.
Tippecanoe County	All 48 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.
Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.
Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.