DEC Modula-2 [FTP]: A Modula-2 compiler for VAX BSD + ULTRIX and for MIPS/ULTRIX is available with sources. Some more information is available. In comp.lang.modula2 this one was often discussed under the name 'Mike Powell's Modula-2 compiler' or 'WRL Modula-2' (Western Research Laboratories).
Original found at "ftp://ftp.sra.co.jp/pub/lang/Modula-2/"