Secure Miles with All Resources and Technology Act This bill amends the Illegal Immigration Reform and Immigrant Responsibility Act of 1996 to direct the Department of Homeland Security (DHS) to deploy the most practical and effective technology available (such as radar, tunnel detection technology, unmanned aerial vehicles, and sensors) to achieve situational awareness and operational control along the U.S. border. DHS shall submit to Congress a comprehensive southern border strategy, which shall include: (1) a list of known physical barriers, technologies, tools, and other devices to achieve situational awareness and operational control of the border and their related cost estimates; and (2) information from federal, state, local, and private sources. DHS shall begin eradicating the carrizo cane plant and salt cedar along the Rio Grande River. The Homeland Security Act of 2002 is amended to establish Operation Stonegarden in DHS to provide border security grants to law enforcement agencies: (1) in a state bordering Canada or Mexico or a maritime border state or territory, and (2) involved in an ongoing U.S. Customs and Border Protection operation coordinated through a sector office. DHS shall establish a two-year grant program to improve emergency communications in the southern border region for individuals who: (1) reside or work in a southern border state, and (2) are at greater risk of violence due to border proximity and a lack of residential or business cellular and LTE network service. Such grants may be used to purchase satellite telephone communications systems and services that provide access to 9-1-1 service and that are equipped with Global Positioning System receivers.