Stream length can be measured using various methods. One common approach is to physically measure the stream's length using a measuring tape or ruler. Another method is to use a map and calculate the stream's length using an appropriate scale. Additionally, aerial imagery or satellite data can be used to estimate stream length. Digital elevation models (DEMs) and geographic information systems (GIS) can also provide accurate stream length measurements by analyzing the stream's elevation profile.«Landform control on settlement distribution pattern in progo»