Koodlu Hole

Koodlu Hole
Location of Koodlu Hole in Kerala
Location
Country	India
State	Kerala
District	Kasaragod district
Physical characteristics
Source
• location	Pattighat Reserve Forest, Kodagu
• coordinates	12.5000°N 75.2000°E
• elevation	250 m
Mouth	Chandragiri River
• location	Near Koodlu village, Kasaragod district
• coordinates	12°30′00″N75°08′00″E / 12.50000°N 75.13333°E / 12.50000; 75.13333
• elevation	0 m (0 ft)
Length	18 km (11 mi)
Basin size	85 km2 (33 sq mi)
Basin features
Cities	Koodlu

Koodlu Hole is a perennial stream and right-bank tributary of the Chandragiri River in Kasaragod district, Kerala, India. ^[1] It originates in the Pattighat Reserve Forest of Kodagu district, Karnataka, and flows approximately 18 km along the Kerala-Karnataka border before joining the Chandragiri near Koodlu village. ^[2]

Chandragiri River basin near Koodlu Hole's mouth, showing riparian landscape (Balanthode, Kasaragod)

Course

Koodlu Hole drains a basin of about 85 km², forming part of the natural boundary between Kasaragod taluk and Sullia taluk in Karnataka. ^[3] It facilitates cross-border irrigation for paddy and areca nut crops in the lower reaches. ^[4]

Ecology

The Koodlu Hole passes through semi-evergreen forests of the Kodagu-Kasaragod border, supporting riparian flora like wild mango and cane thickets. ^[5] It hosts native fish species including Deccan mahseer and barbels, contributing to the regional aquatic food web, with peak flows during monsoons aiding migration. ^[6] Conservation includes joint Kerala-Karnataka patrols for watershed protection against illegal logging and siltation. ^[7]

References

1. "River System". Irrigation Design and Research Board, Government of Kerala. Retrieved 2 November 2025.
2. "About District". Kasaragod District Administration. Retrieved 2 November 2025.
3. "Kasaragod District Panchayat Profile" (PDF). Local Self Government Department, Government of Kerala. Retrieved 2 November 2025.
4. "Minor Irrigation Schemes". Irrigation Department, Government of Kerala. Retrieved 2 November 2025.
5. "Mogral, Chandragiri and Chittari Rivers". Environmental Information System, Kerala State Council for Science, Technology and Environment. Retrieved 2 November 2025.
6. "Aquatic Ecosystems in Kerala". Kerala Forest Department, Government of Kerala. Retrieved 2 November 2025.
7. "Eco-Development Committees". Kerala Forest Department, Government of Kerala. Retrieved 2 November 2025.