
Check which species have trophy potential in G 15 Lateral
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G 15 Lateral is a water located in Cassia County, Idaho, United States. It is most popular for fishing Smallmouth bass and Brown trout.
Learn what time of year and day to go fishing at G 15 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 Smallmouth bass as of April 1st, 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 dolomieui
0.5 miles away
34.6 miles away
39.3 miles away
70.8 miles away
72.2 miles away
72.3 miles away
85.7 miles away
99.4 miles away
105.3 miles away
109.9 miles away
111.3 miles away
112.7 miles away
113.7 miles away
114.1 miles away
114.3 miles away
126.4 miles away
127.9 miles away
129.9 miles away
130.0 miles away
131.0 miles away
133.2 miles away
133.6 miles away
133.9 miles away
134.3 miles away
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