One-Million-Liter Test Sphere

Also known as: Horton Test Sphere, Test Sphere, Cloud Study Chamber, The 8-Bal
N of Frederick on Fort Detrick, Frederick, Maryland

Map 

National Register information 

Status
Posted to the National Register of Historic Places on November 23, 1977
Reference number
77000696
Area of significance
Science
Level of significance
National
Evaluation criteria
A - Event
Property type
Structure
Historic function
Research facility
Period of significance
1950-1974
Significant years
1951; 1970

Sources