$Results = Get-ADUser -filter * -searchbase "ou=Albuquerque,ou=Users,ou=Corporate,dc=ourcompany,dc=com" |select samaccountname |sort-object samaccountname| select samaccountname, @{n='Site';e={"Alburquerque"}}
$Results += Get-ADUser -filter * -searchbase "ou=Roswell,ou=Users,ou=Corporate,dc=ourcompany,dc=com" |select samaccountname |sort-object samaccountname| select samaccountname, @{n='Site';e={"Roswell"}}

$(foreach($ht in $Results){new-object PSObject -Property $ht}) | Format-Table -AutoSize