Portage group

Por´tage group`

1.(Geol.) A subdivision of the Chemung period in American geology. See Chart of Geology.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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In terms of the group composition: the ABA group had 12 participants (11 male and 1 female), with a mean age of 40 months (range 32-47 months) at intake; the special nursery group had 20 participants (18 male and 2 female), with a mean age of 43 months (range 41-48 months); and the portage group had 16 participants, with a mean age of 38 months (range 30-45 months).
Michael Carson, 21, of Marsh, is tackling the London Marathon in April for the Portage group, which recently celebrated its 25th anniversary.
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