Im
jaBh
ote (^) K
os
i
Du
dh
(^) K
os
i
In
kh
u
Li
kh
u
uD
dh
K
osi
Dudh Lake
Taboche L.
Thonak L.
Chola L.
Rolpa Lake
Lumding Lake
Imja Lake
Lukla
Namche
Bazaar
Gokyo
Thame
Tugla
Imja controlled
outlet
Phakding
Everest Base
Camp
Lumding^ Ridge
Kh
um
uc
he
(^) R
id
ge
K
y
a
s
h
a
r^
R
id
g
e
Rolwaling (^) Val
ley
Cho Oyu
26,864 ft8,188 m
Numbur22,828 ft
6,958 m
Gyachung Kang
26,089 ft7,952 m
Lunag Ri
22,621 ft
6,895 m
Lhotse
27,940 ft
8,516 m
Kyashar
22,211 ft6,770 m
Taboche21,309 ft
6,495 m
Gokyo Ri
17,575 ft5,357 m
Ama Dablam
22,349 ft6,812 m
Mt. Everest
29,035 ft8,850 m
LangmocheGlacier
GlacierNare
RongbukGlacier
Dr
ol
am
ba
u^
lG
ac
ier
gN
oz
um
ba
Gl
acier
Kh
um
bu
G
lac
N ier
angp
a (^) G
lac
ier
LumdingGlacier
Lhotse
Glacier
Kyashar
Glacier
SumnaGlacier
Trakarding
Glacier
Likhu
Glacier
Built-up areas
Sept. 3, 1998
TAMA
LAKE
Sept. 3, 1977
NARE LAKE
CHOKARMA LAKE
Aug. 4, 1985
April 27, 2015
DIG LAKE
INDIA
NEPAL
TIBET
CHINA
Kathmandu
Mt. Everest
H
I
M
A
L
A Y
A
DIRECTIONOF VIEW
Documented
glacial lake
outburst flood
INDIA
NEPAL CHINA
ASIA
0 km 50
0 mi 50
N
Scientists say the accelerated
melting of Asia’s estimated 56,000
glaciers is creating hundreds of new
lakes across the Himalaya and other
high mountain ranges. If the natural
dam holding a glacial lake in place
fails, the resulting flood could
wipe out communities situated
in the valleys below. Engineers
in Nepal are looking at ways
to lower the most dangerous
lakes to reduce the threat.
Dangerous Lakes
Imja Lake’s water level
was lowered in 2016 to
reduce flood risk.
SOREN WOPMENT (ICIMALLJASPER, NGMOD); OPENSTREETM STAFF. SOURCES: INTERNATIONAL CENTRE FOR INTEGRATED MAP CONTRIBUTORS, AVAILABLE UNDER OPEN DATABASE LICENSE; GLOB-OUNTAIN DEVEL-
AL LAND ICE MEASUREMENTS FROM SPACE (GLIMS); ALTON BYERS, UNIVERSITY OF COLORADO BOULDER
Dig Lake first burst
its dam in 1985, de-
stroying bridges as
far south as Phakding.
Scale varies in this perspective.
The distance from Cho Oyu
summit to Lukla is 28.5 miles.