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Single Family Residential 54.89% Vacant Agriculture 18.87% Improved Agriculture 15.00% Exempt Property 6.32% Commercial 3.14% Utilities .24% I I I I I I I I I I I I I I I I I I I elevation of the stream bed ranges from approximately 845 feet at the mouth to 888 feet at 8.7 miles upstream. Peak flood elevations are between 895-900 feet approximately 9 miles upstream and decrease downstream. Although this data is perhaps most relevant to residential development and associated insurance determinations, the flood water surface elevations are useful in any development. This data reveals potential flooding elevations which could wash out and/or wear on trails, educational interpretive signs or other facilities built as part of a trail system along Trott Brook. Watershed Characteristics Land use within the Trott Brook watershed is relevant to the continued ecological health of the Brook as anthropogenic disturbances to the watershed accompany most types of land use and can thus impact the brook. Within Sherburne County, the land surrounding Trott Brook is zoned as a general rural zone (Brown, 1996). The permitted uses include: public parks and open spaces, single family homes, and agriculture (Brown, 1996). The area is experiencing significant residential development pressure (Brown, 1996). Within Anoka County, land use can be determined more specifically because of the Geographic Information Systems (GIS) technology available within the county. As Table 4 documents, the GIS data indicates that the majority of land surrounding Trott Brook within Anoka County is used for single family residential development. Other uses include agriculture, commercial, industrial and utilities (Anoka County, 1996). Table 4. Land Use Surrounding Trott Brook (Anoka County GIS) 12