Using Windows PowerShell to Find an AD User across multiple domains

So, I have a single forest with multiple domains.  I wanted to use the native ActiveDirectory module for find a SamAccountName.

I came up with this:

$sam = "mysam"
$domains = (Get-ADForest).domains
ForEach($domain in $domains){
  Write-Host $domain
  Get-ADUser -Filter 'SamAccountName -eq $sam ' -Server $domain -Properties *| select DistinguishedName

Then I had a brain fart!  Why not use a GC?  Its quicker ;-)

$sam = "mysam"
$forest = (Get-ADForest).Name + ":3268"
Get-ADUser -Filter 'SamAccountName -eq $sam' -Server $forest -Properties * | select DistinguishedName


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