Contact Us

Email, Phone, and Fax

[email protected] 

phone: 520-558-2396

fax: 520-558-2018

Mailing Addresses

United States Postal Service (USPS)

Southwestern Research Station

PO Box 16553

Portal, AZ 85632

UPS and FedEx

Southwestern Research Station

2003 West Cave Creek Road

Portal, AZ 85632