Karnes Hollow

Karnes Hollow is a tributary of Fishing Creek in Columbia County, Pennsylvania, in the United States. It is approximately 1.1 mi long and flows through Fishing Creek Township and Benton Township. The watershed of the stream has an area of 0.90 sqmi. The stream is named after a valley whose etymology is unknown. The surficial geology in its vicinity consists of colluvium, alluvium, Illinoian Till, Illinoian Lag, and bedrock consisting of sandstone and shale.

Course
Karnes Hollow begins in a valley on Kramer Hill in Fishing Creek Township. It flows north for a short distance before turning north-northeast for several tenths of a mile. The stream then turns northeast for several tenths of a mile, entering Benton Township. It then turns east and reaches its confluence with Fishing Creek a few hundred feet further downstream.

Karnes Hollow joins Fishing Creek 20.90 mi upstream of its mouth.

Geography and geology
The elevation near the mouth of Karnes Hollow is 722 ft above sea level. The elevation of the stream's source is between 980 and 1000 ft above sea level.

Along most of the length of Karnes Hollow, the surficial geology features colluvium. However, alluvium (which contains stratified sand, silt, and gravel, as well as some boulders), is present near the mouth of the stream. There are also some patches of Illinoian Till and Illinoian Lag in the middle and upper reaches of the watershed. The surficial geology everywhere else in the stream's vicinity consists of bedrock consisting of sandstone and shale.

Watershed
The watershed of Karnes Hollow has an area of 0.90 sqmi. The stream is entirely within the United States Geological Survey quadrangle of Benton.

Karnes Hollow is located to the northwest of the community of Stillwater and some distance to the south of Benton. The stream is in the north-central part of Fishing Creek Township and in the east-central part of the quadrangle of Benton.

There are no roads crossing Karnes Hollow. However, Kramer Hill Road runs relatively close to the stream for its entire length, staying within several hundred feet of it and at times approaching to within 200 ft.

History and etymology
Karnes Hollow was entered into the Geographic Names Information System on August 2, 1979. Its identifier in the Geographic Names Information System is 1178233.

Karnes Hollow is an unnamed stream that takes the name of the valley through which it flows. The etymology of the valley is unknown.