Pills that are laced with fentanyl or contain nothing but fentanyl are coming into the Mountain West via the border with Mexico. About a quarter of the fentanyl pills seized by the DEA have had enough fentanyl to kill.

Fatal drug overdoses are skyrocketing, driven by synthetic opioids like fentanyl. And that potentially deadly drug has made it to the Mountain West – the last part of the U.S. to face the brunt of the opioid crisis.

In the high-stakes fight against fentanyl-induced drug deaths, one remedy is fairly simple: blue and white strips of paper. Fentanyl test strips work like a pregnancy test. One line shows up if there’s fentanyl in a solution. Two lines if there’s none. But where are they needed most?

Fentanyl test strips and better data may be a few of the many solutions to the opioid epidemic and the Mountain West's spike in overdose deaths.