My property is in the Catskill Mountains, NY. A stream runs along the back about 50 feet. The stream is only a few feet wide in the summer when there's no rain. But the stream bed/gully itself is about 20 feet wide. The bank is slowly eroding due to heavy flow in the spring. The bank on my side of the property is about 6-7 feet deep -- part of it slopes and part of it is vertical. On the sloping part, large rocks have been placed from top to bottom and this works, but how do I prevent the erosion on the vertical part? There is not a lot of space between the house and the bank. And getting to the back of the property with any kind of large equipment poses a problem.