Name: Massacre Rocks State Park Boat Ramp
Address: American Falls, Idaho, United States

What's Biting

0–39 Slow40–59 Fair60–79 Good80+ Great

Primary Catches Only

Key factors

Bite score trend

Get full report

Tackle recommendations

View regulations & licenses

Key factors

Bite score trend

Get full report

Tackle recommendations

View regulations & licenses

Key factors

Bite score trend

Get full report

Tackle recommendations

View regulations & licenses

Key factors

Bite score trend

Get full report

Tackle recommendations

View regulations & licenses

Key factors

Bite score trend

Get full report

Tackle recommendations

View regulations & licenses

Key factors

Bite score trend

Get full report

Tackle recommendations

View regulations & licenses

Key factors

Bite score trend

Get full report

Tackle recommendations

View regulations & licenses

Key factors

Bite score trend

Get full report

Tackle recommendations

View regulations & licenses

Key factors

Bite score trend

Get full report

Tackle recommendations

View regulations & licenses

SEE ALL SPECIES

What's Biting

0–39 Slow40–59 Fair60–79 Good80+ Great

Smallmouth bass

Conditions: unfavorable

Key factors

Water temp is 74°F (ideal), water clarity is 5 NTU (ideal), and pressure is 1012 hPa (ideal).

By 5 AM: this fish's peak activity hours kick in.

Bite score trend

Best: 5:00 AM – 8:00 AM

Tackle recommendations

Common carp

Conditions: unfavorable

Key factors

Water temp is 74°F (ideal), pressure is 1012 hPa (favorable), and current (ideal).

Conditions hold fairly steady over the next few hours.

Bite score trend

Best: 3:00 AM – 8:00 AM

Tackle recommendations

Channel catfish

Conditions: typical

Key factors

Water temp is 74°F (ideal), current (ideal), and within this fish's peak activity hours.

By 4 AM: this fish's prime hours start to taper off.

Bite score trend

Best: 10:00 PM – 3:00 AM

Tackle recommendations

Utah Chub

Conditions: favorable

Key factors

Water temp is 74°F (ideal) and water clarity is 5 NTU (ideal), though outside this fish's peak activity hours.

Why 10 AM – 3 PM wins: this fish's peak activity hours kick in.

Bite score trend

Best: 10:00 AM – 3:00 PM

Tackle recommendations

Yellow perch

Conditions: favorable

Key factors

Water clarity is 5 NTU (ideal) and pressure is 1012 hPa (ideal), though outside this fish's peak activity hours.

Why 2 PM – 7 PM wins: water temp falls from 74 to 69°F, now ideal for this fish, and this fish's peak activity hours kick in.

Bite score trend

Best: 2:00 PM – 7:00 PM

Tackle recommendations

Steelhead

Conditions: bad

Key factors

Water clarity is 5 NTU (ideal) and current (ideal), though water temp is 74°F (poor).

By 5 AM: this fish's peak activity hours kick in.
By 11 AM: sun (poor).

Bite score trend

Best: 5:00 AM – 10:00 AM

Tackle recommendations

As an Amazon Associate, Karp earns from qualifying purchases. Tackle recommendations and regulations are AI generated; AI can make mistakes.