Drainage: ~1 square mile

Just downstream of the listed put-in coordinates (at the juncture of two streams), drainage area is ~1 square mile (as calculated by USGS StreamStats 4.2.0 software).

Just prior to merging with Long Devil's Fork, drainage has risen to ~3.8 square miles.

Long Devil's Fork at that point has drainage of ~5.11 square miles, for a combined drainage of ~8.9 square miles. Not far downstream, you'll enter Richland Creek, and the combined drainage after the confluence will be ~41.6 square miles (obviously meaning a huge jump in volume in that run).