'Alder' definitions:

Definition of 'alder'

From: WordNet
noun
Wood of any of various alder trees; resistant to underwater rot; used for bridges etc
noun
North temperate shrubs or trees having toothed leaves and conelike fruit; bark is used in tanning and dyeing and the wood is rot-resistant [syn: alder, alder tree]

Alder, MT -- U.S. Census Designated Place in Montana

From: Gazetteer 2000
Name :
Alder, MT -- U.S. Census Designated Place in Montana
Population (2000) :
116
Housing Units (2000) :
69
Land area (2000) :
2.013323 sq. miles (5.214482 sq. km)
Water area (2000) :
0.000000 sq. miles (0.000000 sq. km)
Total area (2000) :
2.013323 sq. miles (5.214482 sq. km)
FIPS code :
00850
Located within :
Montana (MT), FIPS 30
Location :
45.324531 N, 112.108035 W
Note :
some ZIP codes may be omitted esp. for suburbs.