| From
1966 to 1968 The Army Corp of Engineers poured concrete "Maltese"
crosses in the desert in, and around, the town of Casa Grande, AZ. This was done so that the Corona spy satellite cameras (in operation since 1959) could be calibrated from their orbit around the Earth. In 1972 the Corona project was discontinued. In the mid-to-late 1990's the Corona Project was declassified. There were originally 272 of these concrete target crosses laid out in a grid one mile apart from each other that was 17 miles square. The western border and the southern border of this grid only had a target located at every other mile so that when viewing the images that were taken by the Corona cameras the orientation was known. The crosses themselves were about 60 feet across. The concrete was poured in at least five segments - the four legs of the Maltese-style cross, and the center cylinder which had a brass/bronze marker designating which target it was. A few of the targets that are located on a mountain range were made primarily using rocks from the surrounding area with only a border of concrete to outline the cross. This was presumably done because it was difficult to haul that much concrete and supplies to these areas. Owners of the land that the crosses were located on were given the option of having them removed. In addition, the town was growing and areas were being cleared for new developments. Still, it is believed that there are more than 150 targets currently in existence. The table below will eventually have links to photos of all of the targets that I have personally seen and photographed, along with the date that I confirmed it was present, and the year that it was originally placed! If there is no date (and/or if the link is not active) I have not been to that location yet, or it has already been confirmed that it does NOT exist. If there is an asterisk next to the target designation, see the appropriate note below the table. Current quantity of targets that I have photographed: 116 |
| W43 5-27-18 1966 |
X43 5-27-18 1967 |
Y43 |
Z43* 5-27-18 196? |
AA43 |
AB43 |
AC43 Missing |
AD43 Missing |
AE43 Missing |
AF43 Missing |
AG43 Missing |
AH43 |
AJ43 |
AK43 |
AL43 |
AM43 5-22-18 1968 |
AN43 |
| X44 | Y44 5-27-18 1967 |
Z44* 5-27-18 196? |
AA44 | AB44 | AC44 Missing |
AD44 Missing |
AE44 Missing |
AF44 Missing |
AG44 Missing |
AH44 | AJ44 | AK44 | AL44 | AM44 | AN44 | |
| W45 | X45 | Y45 | Z45 | AA45 | AB45 | AC45 Missing |
AD45 Missing |
AE45 Missing |
AF45 Missing |
AG45 Missing |
AH45 | AJ45 | AK45 5-22-18 1967 |
AL45 | AM45 | AN45 6-8-18 196? |
| X46 | Y46 5-27-18 1966 |
Z46 5-27-18 1966 |
AA46 5-27-18 1967 |
AB46 | AC46 | AD46 | AE46 Missing |
AF46 | AG46 | AH46 | AJ46 5-22-18 1967 |
AK46 5-22-18 1967 |
AL46 | AM46* 5-22-18 196? |
AN46 | |
| W47 5-27-18 1966 |
X47 5-27-18 1967 |
Y47* 5-27-18 196? |
Z47 5-27-18 1966 |
AA47 5-27-18 1966 |
AB47 | AC47 5-14-18 1968 |
AD47* 5-28-18 1968 |
AE47 Missing |
AF47 | AG47* 5-31-18 196? |
AH47 | AJ47 | AK47 | AL47 | AM47 | AN47 |
| X48 5-27-18 1967 |
Y48 5-27-18 1966 |
Z48 5-27-18 1966 |
AA48 5-20-18 1966 |
AB48* 5-?-18 1967 |
AC-48* 5-14-18 1967 |
AD48 5-14-18 1966 |
AE48 5-13-18 1966 |
AF48 5-15-18 1966 |
AG-48* 5-31-18 1966 |
AH48 5-21-18 1966 |
AJ48 5-21-18 1967 |
AK48 | AL48 | AM48 6-8-18 1967 |
AN48 | |
| W49 5-27-18 1966 |
X49 5-27-18 1966 |
Y49 5-28-18 1966 |
Z49 5-27-18 1966 |
AA49 5-20-18 1966 |
AB49 5-20-18 1966 |
AC49 | AD49 5-13-18 1966 |
AE49 5-10-18 1966 |
AF49 5-19-18 1966 |
AG49 6-23-19 1966 |
AH49 5-21-18 1966 |
AJ49(2) 5-13-18 1967 |
AK49 | AL49 | AM49 | AN49 |
| X50 6-17-18 1966 |
Y50 6-17-18 1966 |
Z50 7-1-18 1966 |
AA50 6-10-18 1966 |
AB50 6-10-18 1966 |
AC50 5-20-18 1966 |
AD50 5-13-18 1966 |
AE50 | AF50 | AG50* 5-20-18 1966 |
AH50* 5-20-18 196? |
AJ50 | AK50 | AL50 | AM50 6-8-18 1967 |
AN50 | |
| W51 6-17-18 1966 |
X51 | Y51 | Z51 6-10-18 1966 |
AA51 | AB51 7-1-18 1966? |
AC51 5-26-18 1966 |
AD51 5-20-18 1966 |
AE51 | AF51 | AG51 | AH51 | AJ51 | AK51 6-3-18 1966 |
AL51 | AM51 | AN51 6-8-18 1966 |
| X52 | Y52 | Z52 6-10-18 1966 |
AA52 6-10-18 1966 |
AB52 | AC52 5-28-18 1966 |
AD52 7-29-18 1966 |
AE.52* 3-24-19 1966 |
AF52 | AG52 5-20-18 1968 |
AH52 | AJ52 | AK52 | AL52 | AM52 | AN52 6-8-18 1966 |
|
| W53 |
X53 | Y53 | Z53 6-10-18 1966 |
AA53 6-10-18 1966 |
AB53 8-19-18 1966 |
AC53 7-29-18 1966 |
AD53 7-29-18 1966 |
AE53 7-29-18 1968 |
AF53 | AG53 5-20-18 1966 |
AH53 5-20-18 1966 |
AJ53 5-20-18 1966 |
AK53 | AL53 | AM53 | AN53 |
| X54 | Y54 | Z54 | AA54 | AB54 | AC54 11-11-18 1966 |
AD54 | AE54 6-24-18 1966 |
AF54 7-?-18 1966 |
AG54 | AH54 | AJ54 | AK54* 5-20-18 1966 |
AL54 |
AM54 | AN54 | |
| W55 |
X55 | Y55 | Z55 | AA55 | AB55 |
AC55 | AD55 | AE55 6-24-18 1966 |
AF55 7-8-18 1966 |
AG55 7-8-18 1966 |
AH55 | AJ55* 5-20-18 1966 |
AK55* 5-20-18 196? |
AL55 | AM55 | AN55 |
| X56 9-2-18 1966 |
Y56 | Z.56* 8-19-18 1966 |
AB56 11-11-18 1966 |
AC56 | AD56 6-3-18 1966 |
AE56 | AF56 7-8-18 1966 |
AG56 | AH56 | AJ56 5-20-18 1966 |
AK56* 5-20-18 1968 |
AL56 | AM56 6-2?-18 1966 |
AN56 | ||
| W57 |
X57 | Y57 9-2-18 1966 |
Z57 8-19-18 1966 |
AA57 | AB57 | AC57 | AD57 6-3-18 1966 |
AE57 | AF57 | AG57 | AH57 6-3-18 1966 |
AJ57 5-20-18 1966 |
AK57 6-24-18 1966 |
AL57 | AM57 | AN57 |
| X58 | Y58 9-16-18 1966 |
Z58 9-16-18 1966 |
AA58 | AB58 | AC58 | AD58 6-3-18 1966 |
AE58 6-3-18 1966 |
AF58 6-3-18 1966 |
AG58 6-3-18 1966 |
AH58 | AJ58 | AK58 | AL58 6-24-18 1966 |
AM58 | AN58 |
|
| W59 |
Y59 | AA59 | AC59 | AE59 6-3-18 1966 |
AG59 6-3-18 1966 |
AJ59 | AL59 6-24-18 1966 |
AN59 |