Due to the high volume of calls we receive regarding puppies, we prefer that all inquiries are handled through the online contact form or email (

Office Hours:

In order to care for the dogs and our fosters, MAMCO is closed Sunday – Tuesday. We will respond to calls and emails Wednesday – Saturday. In the event of a medical emergency, please sent an “URGENT” email to and we will contact you shortly. All other emails will be answered during our normal business hours W-S.

Fosters: In the event of an emergency please contact your foster coordinator directly.

Mailing Address:

  • 2721 W. Oxford Ave, #7
  • Sheridan, CO
  • 80110

Contact Form: