Theme: Streams, clipped by district within the Tongass National Forest
Cover Name: - Extent:
anm_strm - Admiralty Island National Monument
hna_strm - Hoonah Ranger District
jun_strm - Juneau Ranger District
sit_strm - Sitka Ranger District
yak_strm - Yakutat Ranger District
SOURCE: Tongass National Forest, Chatham Area
DESCRIPTION: These stream data layers are clipped by ranger district and cover the Chatham Area of the Tongass National Forest. All stream data obtained from the Tongass NF Channel Type database include information on presence of anadromous fish, although this information is variable in age and not documented as to source.
RELATED DATA LAYERS include polygonal hydrologic features contained in the coverage "landpoly", and area wide stream cover "strms95"
COORDINATE SYSTEM DESCRIPTION
COLUMN ITEM NAMW WIDTH OUTPUT TYPE N.DEC ALT
1 NODE# 4 5 B - -
5 TNODE# 4 5 B - -
9 LPOLY# 4 5 B - -
13 RPOLY# 4 5 B - -
17 LENGTH 8 18 F 5 -
25 STRMS95# 4 5 B - -
29 STRMS95-ID 4 5 B - -
33 AHMU-CLASS 1 1 I - AHMU -
34 CHANTYP 4 5 C - CT -
38 LINE-SOURCE 1 1 C - -
AHMU-Class Stream Class 1 Anadromous fish present
2 Resident fish
3 Headwater stream
CHANTYP Channel Type A1 Steep Mtn Slope Channel
A2 High Gradient Upper Value Forested Channel
A3 Alluvial Cone Channel
A4 High Gradient Mtn Slope Cascade Channel
A5 High Gradient Incised Lowland Channel
A6 High Gradient Shallow Lowland Muskeg Channel
A7 High Gradient Forested Footslope Channel
B1 Lowland Low Gradient Forest Channel
B1.3 Kruzof Ash Phase
B1.4 M1 or M3 vegetation phase, gravel substrate
B1.5 Yakutat Foreland Forested Phase
B1.6 Yakutat Foreland Non-forested phase
B2 Moderate gradient forest channel
B3 Moderate gradient Upper valley forest channel
B3.4 B1 or B2 Vegetation phase
B4 Shallow Incision moderate gradient channel
B5 Alluvial Fan channel
B6 Moderate gradiant lowland muskeg channel
B7 Gorge channel
B8 Yakutat narrow uplifted estuary channel
B8.5 Forested phase
B8.6 Non-forested phase (veg - willow and ash)
C1 Low gradient lower valley forested channel
C1.1 High energy phase (forested and non)
C1.3 Kruzof Ash phase
C1.4 Non-forested, low energy phase (muskeg veg)
C1.5 Yakutat foreland glacial outwash channel/forest
C1.6 Yakutat foreland glacial outwash channel/non-forest
C2 Structural Control Low Gradient Lowland Chn.
C2.7 Glide flow C2
C3 Broad alluvial sinuous lowland channel
C3.1 High energy phase (forested or non)
C3.3 Bedrock Influence phase (c3/c2 mix)
C3.4 Non-forested Phase (m3, c8 riparian veg)
C3.5 Yakutat foreland glacial outwash channel/forest
C3.6 Yakutat foreland glacial outwash channel/non-forest
C4 Beach and sand dune channel
C4.5 Forested phase
C4.6 non-forested phase
C5 Confined Narrow valley forested channel
C6 Yakutat Wide Uplifted Estuary Channel
C6.5 Forested Phase
C6.6 Non-forested phase
D1 Low Gradient Cirque basin glacial channel
D2 Upper valley glacial torrent channel
D3 Moderate gradient upper valley glacial channel
D4 Broad low gradient upper valley glacial channel
D5 Braod braided lower valley glacial channel
D6 High gradient alluvial fan glacial channel
E1 Large estuarine channel
E1.3 Large substrate Phase (sm. rubble to bedrock)
E1.6 Incised beach and dune channel outer coast
E2 Small rocky estuarine channel >10m wide
E3 Small sandy estuarine channel (sm. drainage)
E4 Yakutat small estuarine channel
E5 Broad Braided Glacial Estuarine Channel
L1 Low gradient lowland muskeg placid flow channel
L1.4 Scru forest phase
L2 Wide low gradient deep water channel, some flow
L3 Stable beaver dam/pond channel
L4 Shallow braided glacial floodplain cut-off
L5 Deep slough (backwater) floodplain channel
M Marine depositional zone (mud flat)