“Geographically disadvantageous land” includes rough terrain and streams.

“Rough terrain” means land that is uncultivated, undeveloped, and unsuitable for educational purposes and that may be covered by scrub or boulders.

“Stream” means natural, altered, or improved channels that have seasonal or continuous water flows as a result of either surface stormwater runoff or groundwater influx, or both. Streams include channels, streambeds, stream banks, drainage ways, and stream mouths.