<P> The Snake continues through its canyon , receiving the Malad River from the east near Bliss and then the Bruneau River from the south in C.J. Strike Reservoir . It passes through an agricultural valley about 30 miles ( 48 km ) southwest of Boise and flows briefly west into Oregon , before turning north to define the Idaho -- Oregon border . Here the Snake River almost doubles in size as it receives several major tributaries -- the Owyhee from the southwest , then the Boise and Payette rivers from the east , and further downstream the Malheur River from the west and Weiser River from the east . North of Boise , the Snake enters Hells Canyon , a steep , spectacular , rapid - strewn gorge that cuts through the Salmon River Mountains and Blue Mountains of Idaho and Oregon . Hells Canyon is one of the most rugged and treacherous portions of the course of the Snake River , posing a major obstacle for 19th - century American explorers . Here the Snake is also impounded by Hells Canyon , Oxbow , and Brownlee Dams , which together make up the Hells Canyon Hydroelectric Project . </P>
<P> The Snake continues through its canyon , receiving the Malad River from the east near Bliss and then the Bruneau River from the south in C.J. Strike Reservoir . It passes through an agricultural valley about 30 miles ( 48 km ) southwest of Boise and flows briefly west into Oregon , before turning north to define the Idaho -- Oregon border . Here the Snake River almost doubles in size as it receives several major tributaries -- the Owyhee from the southwest , then the Boise and Payette rivers from the east , and further downstream the Malheur River from the west and Weiser River from the east . North of Boise , the Snake enters Hells Canyon , a steep , spectacular , rapid - strewn gorge that cuts through the Salmon River Mountains and Blue Mountains of Idaho and Oregon . Hells Canyon is one of the most rugged and treacherous portions of the course of the Snake River , posing a major obstacle for 19th - century American explorers . Here the Snake is also impounded by Hells Canyon , Oxbow , and Brownlee Dams , which together make up the Hells Canyon Hydroelectric Project . </P>
how far is snake river from boise idaho
how far is snake river from boise idaho
about 30 miles ( 48 km )
about 30 miles ( 48 km )