If you're setting up Snow for the first time for MARCHintosh, this archive will save you a lot of headaches:
It includes not only ROMs for the machines themselves, but also for things like video games and odd accessories.
Check it out!
Mac ROMs : Apple : Free Download, Borrow, and Streaming : Internet Archive
A whole ton of Macintosh 68k/PPC and related ROMsMac_ROMs68k1M2M64k128k256k512kCUDA ADBEgret ADBMiscAcceleratorsBridge routersDevelopment boardsDMA Serial...
archive.org
It includes not only ROMs for the machines themselves, but also for things like video games and odd accessories.
Check it out!