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144 acres · Other owner — PFBC data, retrieved Oct 4, 2026
Special regulations
Big Bass Program — 2026 Fishing Summary, p. 11
Latest PFBC survey
May 2019 (7 years ago)
On the 2026 trout schedule
Yes — 4 dates, as published Oct 4, 2026
Fish-consumption advisory
Yes — 2026 list
Ice-fishing list
On PFBC's ice-fishing destination list (retrieved Oct 4, 2026)
PFBC trout program
Stocked Trout Water, open to year-round fishing — PFBC GIS data. PFBC data, Aug 2026
Two Mile Run Reservoir (Justus Lake) covers 144 acres in Venango County. PFBC biologists last reported on it in May 2019. It has 4 dates on PFBC's 2026 adult trout schedule, as published Oct 4, 2026. The 2026 advisory lists Smallmouth Bass, Largemouth Bass here at 2 meals/month.
What PFBC biologists found
May 2019 survey · 7 years ago
Black Bass
Gear: night electrofishing
The survey captured 208 Largemouth Bass at 138.7 bass per hour. (p. 3)
Biologists caught 158 Smallmouth Bass at 105.3 bass per hour. (p. 3)
Bass between 9 and 14 inches long accounted for 81% of the bass catch. (p. 3)
A captured Largemouth Bass measured 20.9 inches and weighed 5.8 pounds. (p. 3)
A captured Smallmouth Bass measured 20.3 inches and weighed 4.1 pounds. (p. 3)
PFBC's plan, in our words: PFBC plans an early spring trap net survey to assess tiger musky abundance and evaluate whether stocking meets management benchmarks. (p. 5)
Open to year-round fishing; no trout may be kept from February 16 until the opener (2026 Fishing Summary, p. 23).
Fish consumption advice (2026 list)
2026 DEP/PFBC fish consumption advisory, updated Feb 27, 2026.
Species
Meal advice
Contaminant
Area
Smallmouth Bass, Largemouth Bass
2 meals/month
Mercury
Entire lake
Statewide advice:“Pennsylvania has issued a general, statewide health advisory for recreationally caught sport fish: eat no more than one meal (1/2 pound) per week of sport fish caught in the state’s waterways.”
“People who regularly eat sport fish, women of childbearing age and children are particularly susceptible to contaminants that build up over time.”
“Fish stocked from PFBC state fish hatcheries are subject to the blanket one-meal-per-week consumption advisory that applies to recreationally caught sport fish in Pennsylvania.”
DEP: “The advisory listing was current at the time this summary went to press. Fish consumption advisories may have been issued or lifted since that time.”
Largemouth, Smallmouth and Spotted Bass: 15-inch minimum and 4 a day (combined) from Jan. 1 through April 10 and from June 13 through Dec. 31; catch and immediate release only from April 11 through June 12, with no tournaments. Other species follow inland rules.
Check posted rules and current conditions before you go.
On PFBC's ice-fishing destination list (retrieved Oct 4, 2026). Species PFBC lists for ice fishing here: Largemouth Bass, Smallmouth Bass, Trout (stocked), panfish.
This site has no ice reports; conditions change daily; never assume ice is safe.
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Questions about Two Mile Run Reservoir (Justus Lake)
Is Two Mile Run Reservoir (Justus Lake) stocked with trout?
PFBC lists Two Mile Run Reservoir (Justus Lake) on its adult trout schedule for 2026: 4 dates, as published Oct 4, 2026. Dates can change; check PFBC's schedule.
When is Two Mile Run Reservoir (Justus Lake) on PFBC's trout-stocking schedule in 2026?
As published Oct 4, 2026: Feb 17, 2026; Apr 6, 2026; Apr 14, 2026; Nov 3, 2026. PFBC: “All stocking events are subject to change without notice.”
Can you eat fish from Two Mile Run Reservoir (Justus Lake)?
The 2026 DEP/PFBC advisory lists: Smallmouth Bass, Largemouth Bass — 2 meals/month (Mercury). The statewide advice is one meal a week of sport fish. Not medical advice.
What fish are in Two Mile Run Reservoir (Justus Lake)?
PFBC's May 2019 survey recorded: Largemouth Bass, Smallmouth Bass, Bluegill, Black Crappie. Surveys record what biologists caught with their gear on those days, not everything in the lake.
Is Two Mile Run Reservoir (Justus Lake) a Big Bass lake?
Yes. PFBC's special-regulation data and the 2026 Fishing Summary (p. 11) list it in the Big Bass Program: Largemouth, Smallmouth and Spotted Bass: 15-inch minimum and 4 a day (combined) from Jan. 1 through April 10 and from June 13 through Dec. 31; catch and immediate release only from April 11 through June 12, with no tournaments. Other species follow inland rules.