Does Lost Creek # 1 hold wild trout?

Yes. The state classifies Lost Creek # 1 as Class II (some natural reproduction) across 4.92 miles of stream. That classification means natural reproduction, not stocking. Source: Wisconsin DNR Classified Trout Streams.

Lost Creek # 1

Wisconsin. Classified Class II (some natural reproduction) by the state across 4.92 miles.

State Trout Classification

Classification	Class II (some natural reproduction)
Classified length	4.92 miles

Source: Wisconsin DNR Classified Trout Streams.

Fly fishing rivers →Wisconsin trout water →Wisconsin lakes →

Conditions: USGS NWIS (public domain). Classification: Wisconsin DNR Classified Trout Streams.