
Check which species have trophy potential in 15.0 South Branch Lateral
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15.0 South Branch Lateral is a water located in Canyon County, Idaho, United States. It is most popular for fishing Largemouth bass, Channel catfish, and Smallmouth bass.
Learn what time of year and day to go fishing at 15.0 South Branch Lateral. Download Fishbrain today to look for new fishing spots, scout new fishing access, or prep for your next trip.

Disclaimer: Always check local fishing regulations, water access rights and land ownership before fishing, regardless of any catches logged in that area by the Fishbrain community. Fishbrain has mapped millions of acres of government-owned land across the USA to help you identify potential fishing access, but you are responsible for ensuring compliance with all legal requirements.
Fishing regulations in Idaho can change throughout the year. Make sure to check this page before fishing for the most up to date rules and regulations for the current season. Local regulations govern when you can fish, the max size of the fish you can keep, how many fish you can keep, and more.
Below you will see fishing regulations for catching Largemouth bass as of April 14th, 2026. To view regulations for a different fish species, please click on your preferred species in the drop-down.
Seasons
Bag limit
Min size
Measurement
Aggregate
Micropterus nigricans
2.8 miles away
3.7 miles away
11.5 miles away
14.2 miles away
14.3 miles away
17.8 miles away
19.8 miles away
33.5 miles away
57.2 miles away
116.6 miles away
123.0 miles away
131.0 miles away
138.4 miles away
161.1 miles away
178.7 miles away
189.1 miles away
192.9 miles away
196.6 miles away
201.4 miles away
205.4 miles away
215.8 miles away
216.2 miles away
217.2 miles away
217.7 miles away
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