Mail goes through an offsite processing facility and is digitized. Make sure to include contact info in the letter. My postal mailing address is:

Montana Women’s Prison
Tabitha Crabtree, # 3007328
P.O. Box 247
Phoenix MD 21131

Do not send cash, personal checks or stamps. The letter(s) inside must be addressed to the inmate on the envelope.
Mail must have a return address (as defined by the USPS ), including an identifiable last name.