Au Sable River Assessment
Gaylord N
24 W E 23 25 Lewiston 1 Waters 2 29 S Lovells 26 Frederic 22 28 27 4 45 3 42 32 33 40 Fairview 44 6 47 48 Lincoln 21 Barton City 50 5 39 64 65 Grayling 7 37 62 30 31 Mio Mc Kinley 63 76 Luzerne 38 46 49 52 20 43 36 41 Glennie 70 71 16 19 69 18 51 17 68 72 14 35 53 67 73 15 74 34 55 54 Roscommon 78 60 66 75 77 80 13 11 56 58 59 79
South n 61 o Branch r 12 9 10 Oscoda u H 57
82 e
k 8 a
L St. Helen 0 10 81
MILES
Figure 1.–Major tributaries of the Au Sable River. 196 Au Sable River Assessment
1. Kolke Creek 42. Cherry Creek 2. Bradford Creek 43. Loud Creek 3. Au Sable River 44. Perry Creek 4. East Branch Au Sable River 45. Gusler Creek 5. Shellenbarger Creek 46. Cauchy Creek 6. Barker Creek 47. Comins Creek 7. Wakeley Creek 48. Glennie Creek 8. Marsh Creek 49. Nine Mile Creek 9. South Branch Au Sable River 50. Blockhouse Creek 10. South Creek 51. Wilbur Creek 11. East Creek 52. Bamfield Creek 12. Hudson Creek 53. Smith Creek 13. Robinson Creek 54. Hoppy Creek 14. Beaver Creek 55. Stewart Creek 15. Hickey Creek 56. Mink Creek 16. Thayer Creek 57. Harper Creek 17. Douglas Creek 58. Au Sable Creek 18. Sauger Creek 59. South Branch River 19. White Creek 60. Stuart Creek 20. Grace Creek 61. Wildcat Creek 21. Conner’s Creek 62. East Branch Pine River 22. North Branch Au Sable River 63. West Branch Pine River 23. Chub Creek 64. Loud Creek 24. Turtle Creek 65. Backus Creek 25. Crapo Creek 66. Bryant Creek 26. East Branch Big Creek - North 67. Wallace Creek 27. Wright Creek 68. Kurtz Creek 28. Middle Branch Big Creek - North 69. Samyn Creek 29. West Branch Big Creek - North 70. McGillis Creek 30. Gammy Creek 71. Gimlet Creek 31. Whitewater Creek 72. South Branch Pine River 32. Sohn Creek 73. McDonald Creek 33. Beaver Creek 74. Roy Creek 34. West Branch Big Creek - South 75. Grey Creek 35. Hunt Creek 76. Van Etten Creek 36. East Branch Big Creek - South 77. Duval Creek 37. Red Creek 78. Hill Creek 38. Lost Creek 79. Coppler Creek 39. Antler Creek 80. Pine River (Van Etten Creek) 40. Honeywell Creek 81. Old Au Sable River 41. Wolf Creek 82. State Ditch
197 Au Sable River Assessment
N
W E Otsego Lake North Branch Au Sable Gaylord West Twin Lake S
F32 0 10 Lewiston Big Creek - North Waters MILES
Co. Rd. 612 Lovells Parmalee Bridge Frederic Mio Dam Van Etten Lake Pine River Kellogg's Fairview McKinley Bridge Bridge Lincoln Barton City Grayling Dam Grayling Mio Mc Kinley Stephan Bridge Luzerne Wakeley Bridge Co. Rd. 487 Bridge Glennie South Branch Au Sable Alcona Dam Smith's Bridge Chase Bridge Roscommon
n
o
South r Branch u
H
Oscoda Loud Dam e k Five Channels Dam a L St. Helen Big Creek - South Cooke Dam Foote Dam US - 23 Bridge Lake St. Helen
Au Sable River Valley Segments Headwaters to Wakeley Bridge Wakeley Bridge to Mio Pond Mio Pond to McKinley Bridge McKinley Bridge to Five Channels Dam Five Channels Dam to Foote Dam Foote Dam to Lake Huron
Figure 2.–General sites and river valley segments within the Au Sable River watershed. The dams shown here form ponds having the same name. Roads for differently named bridges are: Kellogg’s Bridge = F32; Smith’s Bridge = M-72; Parmalee Bridge = County Road 485. 198 Au Sable River Assessment
Figure 3.–Surface geology of the Au Sable River watershed. Data from Farrand and Bell (1982). 199 Au Sable River Assessment
Au Sable below Foote Dam
Manistee at High Br.
Muskegon at Evart
Kalamazoo at Kalamazoo
Thunder Bay at M65
Cass at Frankenmuth
Mainstem at Grayling
East Branch at Grayling
Mainstem at Wakeley Br.
South Branch at Smith's Br.
Big Cr.-North at F32
North Branch at Kellogg's Br.
Big Cr.-South at Co. Rd. 487
Mainstem at McKinley Br.
Pine River (Van Etten Creek) near mouth 0 25 50 75 100
Glacial outwash sand & gravel Medium-textured glacial till
Coarse-textured glacial till Fine-textured glacial till
Lacustrine sand & gravel Other (water, peat, dune, lacustrine clay)
Figure 4.–Percent composition of the surficial geology for Michigan catchments similar in size to the Au Sable River below Foote Dam, and for catchments of segments and tributaries throughout the Au Sable River watershed. Data from Michigan Department of Natural Resources, Fisheries Division records. 200 Au Sable River Assessment
180
160 S. Umpqua, OR Clarks Fork, MT Beaverkill, NY 140
120 Yellowstone, MT Gallatin, MT E. Br. Penobscot, ME 100
80 Salmon, ID
60
40 Bois Brule, WI Deschutes, OR
100 x coefficient of variation daily discharge Manistee, MI 20 Au Sable, MI
0 -10 0 10 20 30 40 50 60 Maximum monthly / minimum monthly discharge
Figure 5.–Flow stability of United States trout streams as shown by two measures: 1) ratio of the monthly average flows for the months having the highest and lowest monthly average flows; 2) coefficient of variation for daily flow values over the water year (calculated as the standard deviation of daily flows divided by the mean daily flow times 100). Lower values on either axis indicate greater hydrologic stability. Both the Au Sable and Manistee rivers are in the lowest, left-most corner of the graph. Data from United States Geological Survey and Michigan Department of Natural Resources, Fisheries Division records. 201 Au Sable River Assessment
Cass at Frankenmuth
Muskegon at Evart
Thunder Bay at M65
Manistee at High Bridge
Au Sable below Foote Dam a
0 5 10 15 20 25 30
Mainstem at Alcona Dam* b
Mainstem at McKinley Br.*
Mainstem at Mio Dam
Mainstem at Parmalee Br.
South Branch at Smith's Br.
East Branch at Grayling
Mainstem at Grayling
0 1 2 3 Ratio of 10% to 90% exceedence flows
Figure 6.–Flow stability (expressed as the ratio of 10% and 90% exceedence flows) of: a) Michigan streams having catchments comparable in size to the Au Sable River below Foote Dam; and b) gauged Au Sable River catchments upstream of Mio. Data from United States Geological Survey. * indicates data for 1997 only. 202 Au Sable River Assessment
Cass at Frankenmuth
Muskegon at Evart
Kalamazoo at Kalamazoo
Thunder Bay at M65
Au Sable below Foote Dam
Manistee at High Br.
Mainstem at Alcona Dam*
Mainstem at McKinley Br.*
Mainstem at Mio Dam
Mainstem at Parmalee Br.
North Branch at Kellogg's Br.**
Big Cr.-North at F32**
South Branch at Smith's Br.
East Branch at Grayling
Mainstem at Grayling
0.0 0.2 0.4 0.6 0.8 1.0 1.2 Low-flow yield (cfs/mi2)
Figure 7.–Low-flow yield (90% exceedence flow divided by catchment area) of Michigan streams having catchments comparable in size to the Au Sable River below Foote Dam, and for Au Sable River catchments having USGS streamflow data. Data from United States Geological Survey and Michigan Department of Natural Resources, Fisheries Division records. * indicates data for 1997 only. ** indicates USGS miscellaneous low-flow discharge measurement. 203 Au Sable River Assessment
T = > 50 PERCENT TROUT (TROUT) F = 20 – 50 PERCENT TROUT (FAIR) M = 0 – 20 PERCENT TROUT (MARGINAL) N = 0 PERCENT TROUT (NO TROUT)
Figure 8.–Classification of sites in the Au Sable River upstream of Alcona Pond according to the percent of the electrofishing catch made up by trout. Figure from Coopes et al. (1974). 204 Au Sable River Assessment
1300
1100
900
700
500 04136000 Au Sable River near Red Oak, MI Instantaneous discharge (cfs) Discharge, in cubic feet per second 300 04136500 Au Sable River at Mio, MI Instantaneous discharge (cfs)
100 22 23 24 25 26 27 28 29 30 June 1998
Figure 9.–Instantaneous streamflow measurements for June 22-30, 1998 for the Au Sable River in riverine reaches above (near Red Oak) and below (at Mio) Mio Pond. Water levels of Mio Pond were lowered for inspections of Mio Dam on June 25th. Data from United States Geological Survey. 205 Au Sable River Assessment
Mainstem at Wa Wa Sum
East Branch at Grayling
South Branch at Smith's Br.
North Branch at Kellogg's Br.
Mainstem at Wakeley Br
Big Cr-South at Co. Rd. 487
Big Cr-North at F32
Mainstem at McKinley Br.
Mainstem below Foote Dam
Pine River (Van Etten Creek) near mouth
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Decidious Forest Rangeland Urban Water
Coniferous Forest Forested Wetland Agriculture
Figure 10.–Percent of different land use types for catchments of segments and tributaries of the Au Sable River. Data from Michigan Department of Natural Resources, Fisheries Division records. 206 Au Sable River Assessment Figure 11.–Elevation changes by river mile along the mainstem Au Sable River from its headwaters at the confluence of Kolke and Bradford creeks to its mouth. records. Resources, Fisheries Division Impoundments created by major mainstem dams are shown. Data from Michigan Department of Natural
207 Au Sable River Assessment
80
Free-flowing Impounded
60
40 Miles
20
0 0 - 2.9 3 - 4.9 5 - 9.9 10+ low medium high very high Gradient class (ft/mile)
Figure 12.–Stream gradient distribution for the mainstem Au Sable River. Data from Michigan Department of Natural Resources, Fisheries Division records. 208 Au Sable River Assessment
60
Free-flowing Impounded
40 Miles
20
0 0 - 2.9 3 - 4.9 5 - 9.9 10+ low medium high very high Gradient class (ft/mile)
Figure 13.–Stream gradient distribution for the mainstem Au Sable River from the confluence of the South Branch Au Sable River to Lake Huron. Data from Michigan Department of Natural Resources, Fisheries Division records. 209 Au Sable River Assessment
Gaylord N
W E Lewiston Waters
S Lovells Frederic
Fairview Lincoln Barton City
Grayling Mio Mc Kinley Luzerne Glennie
Roscommon
South n
o Branch r Oscoda u H
e
k
a
L St. Helen 0 10
MILES
Figure 14.–Dams in the Au Sable River watershed. Data from Michigan Department of Environmental Quality, Land and Water Management Division. 210 Au Sable River Assessment
75 B-Foote B-Cooke B-Loud 73 B-Alcona 71 B-Mio ) 69
67
65 A-Loud 63 A-Alcona 61 A-Mio 1990 July temperatures (F Max 59 Mean
57 Min Wa Wa Sum
55 0 20 40 60 80 100 120 140 Miles above Lake Huron
Figure 15.–Average weekly maximum, minimum, and mean stream temperatures in July 1990 for riverine (or tailwater) reaches of the Au Sable River above (A-) and below (B-) Consumers Energy ponds. Data show that ponds unnaturally elevate summer temperatures and reduce natural temperature variations. Data were not collected above Five Channels, Cooke, and Foote ponds due to absence of free-flowing river reaches directly upstream of each pond. Data from Michigan Department of Natural Resources, Fisheries Division records. 211 Au Sable River Assessment
Spawning habitat
migrations
migrations
Refuge habitat daily migrations Feeding and winter growth habitat drought
Figure 16.–The basic life cycle of stream fishes in regard to habitat use (modified from Schlosser 1991). 212 Au Sable River Assessment
Top Quality Coldwater Second Quality Coldwater Top Quality Warmwater Second Quality Warmwater
Gaylord N
W E Lewiston Waters
S Lovells Frederic
Fairview Lincoln Barton City
Grayling Mio Mc Kinley Luzerne Glennie
Roscommon
South n
o Branch r Oscoda u H
e
k
a
L St. Helen 0 10
MILES
Figure 17.–Michigan Department of Natural Resources, Fisheries Division classification of the Au Sable River drainage in 1967. Top- and second-quality coldwater streams are designated trout streams. Data from Michigan Department of Natural Resources, Fisheries Division records. 213 Au Sable River Assessment
25
Lake Superior Lake Huron 20 Lake Michigan Lake Ontario
15
10 Total PCB concentration (mg/kg) 5
0 1970 1972 1974 1976 1978 1980 1982 1984 1986 1988 1990 1992 Year
Figure 18.–Mean total PCB concentrations in whole lake trout from the Great Lakes, 1972-92. Data from De Vault et al. (1996). 214 Au Sable River Assessment
LAKE MICHIGAN Grand 1987 Grand 1990 Grand 1993 Kalamazoo 1987 Kalamazoo 1990 Kalamazoo 1993 Manistee 1990 Manistique 1990 Menominee 1993 Muskegon 1987 Muskegon 1990 Muskegon 1993 Pere Marquette 1990 Pere Marquette 1993 St Joseph 1989 St Joseph 1993 Escanaba 1993 LAKE HURON Thunder Bay 1989 Thunder Bay 1996 Au Sable 1991 Au Sable 1996 Au Gres 1991 Saginaw 1986 Saginaw 1988 Saginaw 1992 LAKE ERIE Huron 1988 Huron 1991 Raisin 1991 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 Net PCB uptake (mg/kg)
Figure 19.–Net uptake of PCBs in channel catfish caged for 27 to 29 days at the mouths of select Michigan rivers. Zero values indicate no detectable uptake. Data from Michigan Department of Environmental Quality, Surface Water Quality Division records. 215 Au Sable River Assessment
0.6
Lake Superior
Lake Huron 0.5 Lake Michigan
Lake Ontario
0.4
0.3
0.2 Chlordane concentration (mg/kg) 0.1
0.0 1986 1988 1990 1992 Year
Figure 20.–Mean total chlordane concentration in whole lake trout from the Great Lakes, 1986-92. Data from De Vault et al. (1996). 216 Au Sable River Assessment
Gaylord N
W E Lewiston Waters
S Lovells Frederic
Fairview Lincoln Barton City
Grayling Mio Mc Kinley Luzerne Glennie
Roscommon
South n
o Branch r Oscoda u H
e
k
a
L St. Helen 0 10
MILES
State Natural Rivers Federal Wild and Scenic Rivers
Figure 21.–State Natural Rivers and Federal Wild and Scenic Rivers in the Au Sable River watershed. The Federally designated portion is also designated as a State Natural River. Data from Anonymous (1987). 217 Au Sable River Assessment
Gaylord N
W E Lewiston Waters
S Lovells Frederic
Fairview Lincoln Barton City
Grayling Mio Mc Kinley Luzerne Glennie
Roscommon
South n
o Branch r Oscoda u H
e
k
a
L St. Helen 0 10
MILES
Figure 22.–Blue Ribbon trout streams in the Au Sable River watershed. Data from Michigan Department of Natural Resources, Fisheries Division records. 218 Au Sable River Assessment
140 Mainstem
120 North Br.
South Br. 100
80
60
40 Brown trout abundance (pounds/acre) 20
0 60 65 70 75 80 85 90 95 Year
Figure 23.–Brown trout abundance for the mainstem, North and South branches of the Au Sable River, 1957-98. Data are averages for the following combinations of electrofishing sites: Mainstem-WaWaSum and Stephan’s Bridge; North Branch- Twin Bridges and Dam Four; South Branch- Chase Bridge and Smith Bridge. 219 Au Sable River Assessment
60 Mainstem North Br. 50 South Br.
40
30
20
Brook trout abundance (pounds/acre) 10
0 60 65 70 75 80 85 90 95 Year
Figure 24.–Brook trout abundance for the mainstem, North and South branches of the Au Sable River, 1957-98. Data are averages for the following combinations of electrofishing sites: Mainstem- WaWaSum and Stephan’s Bridge; North Branch- Twin Bridges and Dam Four; South Branch- Chase Bridge and Smith Bridge. 220 Au Sable River Assessment
A-Mio
B-Mio
A-Alcona
B-Alcona
A-Loud
B-Loud
B-Five Channels
B-Cooke
B-Foote
0 20 40 60 80 100 120 140 160 Number of invertebrate taxa
Figure 25.–Number of invertebrate taxa collected in riverine reaches of the Au Sable River above (A-) and below (B-) Consumers Energy ponds. “Taxa” were usually identified to the species level, but in some cases, only to the genus level; the level of identification (genus vs. species) was consistent across collections. Data were not collected above Five Channels, Cooke, and Foote ponds due to absence of free-flowing river reaches directly upstream of each pond. Data from Lawler, Matusky, and Skelly Engineers (1991 a, b, c, d, e, f). 221 Au Sable River Assessment
A-Mio
B-Mio
A-Alcona
B-Alcona
A-Loud
B-Loud
B-Five Channels
B-Cooke Fall Spring B-Foote
0 500 1000 1500 2000 2500 3000 3500 4000 Invertebrate density (# of organisms per m2)
Figure 26.–Spring and fall densities of aquatic invertebrates on cobble and boulder substrates in riverine reaches of the Au Sable River above (A-) and below (B-) Consumers Energy ponds. No spring data were available below Loud, Five Channels, and Cooke Ponds. Data were not collected above Five Channels, Cooke, and Foote ponds due to absence of free-flowing river reaches directly upstream of each pond. Data from Lawler, Matusky, and Skelly Engineers (1991 a, b, c, d, e, f). 222 Au Sable River Assessment
A-Mio
B-Mio
A-Alcona
B-Alcona
A-Loud
B-Loud
B-Five Channels
B-Cooke
B-Foote
0 10 20 30 40 50 60 Number of mayfly, stonefly, and caddisfly taxa
Figure 27.–Number of mayfly, stonefly, and caddisfly taxa collected in riverine reaches of the Au Sable River above (A-) and below (B-) Consumers Energy ponds. “Taxa” were usually identified to the species level, but in some cases, only to the genus level; the level of identification (genus vs. species) was consistent across collections. Data were not collected above Five Channels, Cooke, and Foote ponds due to absence of free-flowing river reaches directly upstream of each pond. Data from Lawler, Matusky, and Skelly Engineers (1991 a, b, c, d, e, f). 223 Au Sable River Assessment
6,000
Brook
5,000 Brown Rainbow
4,000
3,000 Number stocked 2,000
1,000
0 1960 1965 1970 1975 1980 1985 1990 1995 Year
Figure 28.–Brook, brown, and rainbow trout stockings in the Headwaters to Wakeley Bridge segment of the Au Sable River, 1960-97. Data from Michigan Department of Natural Resources, Fisheries Division records. 224 Au Sable River Assessment
30,000
Brown
25,000 Rainbow
20,000
15,000 Number stocked 10,000
5,000
0 1960 1965 1970 1975 1980 1985 1990 1995 Year
Figure 29.–Brown and rainbow trout stockings in the Wakeley Bridge to Mio Pond segment of the Au Sable River, 1960-97. Data from Michigan Department of Natural Resources, Fisheries Division records. 225 Au Sable River Assessment
35,000
Brook 30,000 Brown Rainbow 25,000
20,000
15,000 Number stocked
10,000
5,000
0 1960 1965 1970 1975 1980 1985 1990 1995 Year
Figure 30.–Brook, brown, and rainbow trout stockings in the Mio Pond to McKinley Bridge segment of the Au Sable River, 1960-97. Data from Michigan Department of Natural Resources, Fisheries Division records. 226 Au Sable River Assessment
30,000 Brown Rainbow 25,000
20,000
15,000 Number stocked 10,000
5,000
0 1960 1965 1970 1975 1980 1985 1990 1995 Year
Figure 31.–Brown and rainbow trout stockings in the McKinley Bridge to Five Channels Dam segment of the Au Sable River, 1960-97. Data from Michigan Department of Natural Resources, Fisheries Division records. 227 Au Sable River Assessment
800,000 Coho Rainbow
700,000 Steelhead Chinook
Brown Lake trout
600,000
500,000
400,000
Number stocked 300,000
200,000
100,000
0 1960 1965 1970 1975 1980 1985 1990 1995 Year
Figure 32.–Salmonid stockings in the Foote Dam to Lake Huron segment of the Au Sable River, 1960-97. Not shown are 9,000 Atlantic salmon that were stocked in 1972. Data from Michigan Department of Natural Resources, Fisheries Division records. 228 Au Sable River Assessment
80 Anadromous a 70 Great Lakes Inland 60
50
40
30
20
10 Number of occupied nests in Lower Peninsul
0 1977 1980 1983 1986 1989 1992 1995 Year
Figure 33.–Number of occupied bald eagle nests in Michigan’s Lower Peninsula by nest category, 1977-96. Data from Michigan Department of Natural Resources, Wildlife Division records. 229 Au Sable River Assessment
1.8 a Anadromous 1.6 Great Lakes 1.4 Inland
1.2
1.0
0.8
0.6
0.4
0.2
Young fledged per occupied nest in Lower Peninsul 0.0 1977 1980 1983 1986 1989 1992 1995 Year
Figure 34.–Productivity of bald eagle nests in Michigan’s Lower Peninsula by nest category, 1977-96. Horizontal lines at productivity values of 0.7 and 1.0 young fledged per occupied nest represent production levels of “stable” and “healthy” populations (Sprunt et al. 1973). Data from Michigan Department of Natural Resources, Wildlife Division records. 230 Au Sable River Assessment
231 Au Sable River Assessment
Gaylord N
W E 53 Lewiston Waters 54 55 57 56 S Lovells Frederic 58
59 60 8 22 Fairview 14 61 21 24 Lincoln 1 2 6 10 17 18 19 25 26 Barton City 11 13 15 30 31 9 28 32 Grayling 3 5 12 16 20 Mio Mc Kinley 34 35 4 7 69 33 68 Luzerne 27 29 66 36 23 37 Glennie 38 70 64 65 63 62 67 39 Roscommon 52 43 42 45 41 South 40 48 49 n o Branch 44 46 r Oscoda u H
47 50 e
k
a
L St. Helen 0 10 51
MILES
Figure 35.–Designated public access sites along the Au Sable River and its tributaries. Data from Michigan Department of Natural Resources and United States Forest Service records. Listed on the following page, access sites are categorized using font types as follows: regular = walk in access; regular, italics = walk in access and campground; bold = boat ramp; bold, italics = boat ramp and campground. 232 Au Sable River Assessment
Mainstem Au Sable River 39. Au Sable River Semi-Primitive Area South 1. Grayling City Park Alcona to Loud Campsites 2. Au Sable River Canoe Camp 40. Loud Pond Primitive Campsites 3. Burton’s Landing 41. Loud Dam 4. Louis Cabin Landing 42. Five Channel Pond Primitive Campsites 5. Keystone Landing 43. Five Channels Pond 6. Whirlpool Road 44. Cooke Pond Semi-Primitive Campsites 7. Thendara Road 45. Foote Pond Primitive Campsites 8. Guide’s Rest 46. Old Orchard Park 9. Stephan Bridge 47. Foote Dam 10. Pine Road 48. Rea Road Bridge 11. Wakeley Bridge 49. Lower Au Sable River Primitive Sites-Foote 12. Townline Road to Whirlpool 13. White Pine State Forest Campground 50. Whirlpool 14. Conners Flat 51. Au Sable Township Ramp 15. Rainbow Bend State Forest Campground 52. Oscoda Public Access 16. McMasters Bridge 17. Parmalee Bridge State Forest North Branch Au Sable River Campground 53. Sheep Ranch 18. Whirlpool Road 54. Twin Bridges 19. Camp Ten Bridge 55. State Access 1 20. Oscoda County Park 56. State Access 2 21. Popps Road (Mio Pond) 57. Lovells Bridge (County Road 612) 22. M33(M-72) 58. Dam 4 23. Loud Rest 59. Sheep Pasture 24. River Dune 60. Kellogg’s Bridge 25. Meadow Springs 61. Morley Road 26. Comins Flats 27. Cathedral Pines South Branch Au Sable River 28. Davis Landing 62. Mead’s Landing 29. McKinley Trail Camp 63. Dearheart Valley Road 30. McKinley Bridge 64. Chase Bridge 31. Butter Cup 65. Durant’s Castle 32. Bear Island 66. Lower High Banks 33. Alcona Rest Stop 67. Chapel 34. Gabions 68. Canoe Harbor State Forest Campground 35. 4001 Road Bridge 69. Smith Bridge 36. Alcona Pond Primitive Campsites 37. Alcona County Park Pine River 38. Bamfield Road 70. Pine River Campground
233 Au Sable River Assessment
234