 Further along this river’s course is the nature reserve "Kalksteinbruch bei Hadamar" comprising , and the area "Elbbachaue east of Elz" comprising .The latter area consists of two sub-areas of wet meadow, which is particularly important because of the occurrence of the dark and the light-colored butterfly called the Scarce large blue.The tributaries of the Elbbach are as follows (L = left side, R = right side), with each river’s length in kilometers (and miles)