zone is characterized by small rubble and gravel except for the 

 area just west of Millersbiorg. Here, from an old dam located one- 

 half mile below Station 2F, upstream for 1.2 miles, the stream 

 is sloTv or sluggish and the bottom is sandy or silted. The 

 watershed is irooded, or, in the neighborhood of llillersburg, 

 composed of farmland and pasture (Appendix G, Table 2). 



One small, permanent tributary (a spring feeder), Indian 

 Creek, enters the river from the southeast near Station 2A. This 

 creek has a uniformly sandy bottom. 



Zone 1. — (Stations 1A,-1M, Figure 28) At the foot of the pre- 

 viously described zone, the river drops over the broken spill"vvay 

 of an old mill dam, 3 feet high, and over two limestone outcrops, 

 6.0 and h'$ feet high. The latter are called the Ocqueoc Falls. 

 Below these falls, the character of the river changes again as it 

 flows for 8.8 miles to its mouth through clay and sandy lake bed 

 formations. At thirteen survey stations in this zone, the river 

 ranged from 23 to $0 feet in width and from 15 to 29 inches in 

 depth. It meanders broadly in this zone and deep pools alternate 

 regularly with short riffle areas. Pool depths varied from 2I4. to 

 llii. inches (9-5 feet). The gradient is somewhat less steep here 

 than in Zone 2 and the mean channel velocity varied from slow to 

 moderate ranging from 2.0 to 3.5 feet per second with current 

 velocities in pools being considerably less than 2.0 feet per 

 second. Bottom types were predominantly sand or sand and gravel, 

 the ratio between the tivo varying in different areas within the 

 zone (Appendix G, Table 1). Gravel riffles ".lere characteristic 

 of the first mile of stream bed below Ocqueoc Falls j thereafter, 

 this bottom type became less and less common being almost entirely 

 supplanted for long distances by sand or sand and clay (Stations 

 IF-IJ and IG-ID). Exposures of clay frequently formed the bed 

 of the stream in the latter areas. Deeper pools had silt or sand 

 bottoms iT/hile most shallow pools had bottoms of sand, rubble, and 

 gravel except in predominantly sandy areas. 



Snags and waterlogged cut timber are abundant in all parts 

 of the river in the lower two-thirds of this zone (Stations lA-lJ) . 

 Old sawlogs lie like jackstraws in many of the deeper pools. Be- 

 t.ween Stations IE and IK, there are about a dozen stream improve- 

 ment devices in various stages of decay -viiiich still produce riffle 

 areas. 



The watershed in Zone 1 is a rather densely wooded bottomland 

 iTith high^ steep banlcs in the upstream half of the region and 

 lower, though no less open banks, in the doMmstream half. 



The river is interrupted in its third mile upstream from the 

 estuary by Ocqueoc Lake which is 132 acres in extent. This lake is 

 narrow and about one mile long — the river enters at one extremity 

 and flows out at the other. 



- 86 



