Mangangate River Alabang–Cupang River
Mangangate River flowing through the Water Garden, Festival Alabang
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Location
Country	Philippines
Region	National Capital Region
City	Muntinlupa
Physical characteristics
Source
• elevation	< 2 meters (6.6 ft) above sea level
Mouth	western lobe of Laguna de Bay
Length	10 km (6.2 mi)
Depth
• minimum	0.25 meters (0.82 ft)
• maximum	2 meters (6.6 ft)

The Mangangate River (Tagalog: Ilog Mangangate), also referred to as the Alabang–Cupang River, is a river system in Muntinlupa, Philippines. It is one of 21 major tributaries of Laguna de Bay.

The main stream has a total length of 10 kilometers (6.2 mi) and has two branches. The first is connected to the drainage system of Ayala Alabang, while the second is connected with the headwater from the New Bilibid Prison (NBP) Reservation, near Camp Sampaguita. This second branch flows through at Ayala Alabang Village and Filinvest City, and connects with the first branch at the Pasong Diablo site, passes through Festival Supermall until it drains out into Laguna de Bay at a point between Wawa, Alabang and Purok 1, Cupang.

The river system has four adjoining creeks:

• The biggest, at a length of 3,500 meters (11,500 ft), joins the river at Pasong Diablo and serves as the Ayala Alabang Village Drainage;
• Two creeks join the mainstream at the Filinvest site; and
• At the NBP Reservation, one creek spans 800 meters (2,600 ft).

The depth of the Mangangate currently varies from 2 to 0.25 meters (6.56 to 0.82 ft).

• "Alabang-Cupang River". muntinlupacity.gov.ph. Archived from the original on 2003-09-28. Retrieved 2019-03-03.

• Laguna de Bay
• Laguna Lake Development Authority

v t e Laguna de Bay
"The Largest Lake in the Philippines"
Location	Calabarzon Metro Manila
Basin country	Philippines
Islands	Talim Island Wonder Island Cielito Lindo Island
Primary outflow	Pasig River
Primary inflows	21 tributaries: Bumbungan River (formerly Pagsanjan River) Santa Cruz River Balanak River Marikina River Mangangate River Tunasan River San Pedro River Cabuyao River San Cristobal River San Juan River Bay River Calo River Maitem River Molawin River Dampalit River Pele River Pangil River Tanay River Morong River Siniloan River Sapang Baho River
Settlements	Provinces Laguna Rizal Metro Manila Cities Biñan Cabuyao Calamba Muntinlupa San Pedro Santa Rosa Taguig Municipalities Angono Baras Bay Binangonan Calauan Cardona Jalajala Kalayaan Los Baños Lumban Mabitac Morong Paete Pakil Pangil Pila Pililla Santa Cruz Siniloan Tanay Taytay Victoria
Luzon, Philippines

14°25′N 121°03′E / 14.417°N 121.050°E / 14.417; 121.050